1202100 has 36 divisors (see below), whose sum is σ = 3478944. Its totient is φ = 320480.

The previous prime is 1202099. The next prime is 1202107. The reversal of 1202100 is 12021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1704 + ... + 2303.

2^1202100 is an apocalyptic number.

1202100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202100 is an abundant number, since it is smaller than the sum of its proper divisors (2276844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1202100 is a wasteful number, since it uses less digits than its factorization.

1202100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4024 (or 4017 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 1202100 is about 1096.4032105024. The cubic root of 1202100 is about 106.3278092100.

Adding to 1202100 its reverse (12021), we get a palindrome (1214121).

Multiplying 1202100 by its reverse (12021), we get a square (14450444100 = 120210²).

1202100 divided by its reverse (12021) gives a square (100 = 10²).

The spelling of 1202100 in words is "one million, two hundred two thousand, one hundred".