1201100202 has 12 divisors (see below), whose sum is σ = 2602383810. Its totient is φ = 400366728.

The previous prime is 1201100189. The next prime is 1201100237. The reversal of 1201100202 is 2020011021.

It can be written as a sum of positive squares in only one way, i.e., 1149820281 + 51279921 = 33909^2 + 7161^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33363877 + ... + 33363912.

Almost surely, 2^1201100202 is an apocalyptic number.

1201100202 is an abundant number, since it is smaller than the sum of its proper divisors (1401283608).

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

1201100202 is a wasteful number, since it uses less digits than its factorization.

1201100202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66727797 (or 66727794 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1201100202 is about 34656.8925612208. The cubic root of 1201100202 is about 1062.9832308389.

Adding to 1201100202 its reverse (2020011021), we get a palindrome (3221111223).

The spelling of 1201100202 in words is "one billion, two hundred one million, one hundred thousand, two hundred two".