102201100 has 18 divisors (see below), whose sum is σ = 221776604. Its totient is φ = 40880400.

The previous prime is 102201083. The next prime is 102201101. The reversal of 102201100 is 1102201.

It is not an unprimeable number, because it can be changed into a prime (102201101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 510906 + ... + 511105.

Almost surely, 2^102201100 is an apocalyptic number.

102201100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102201100 is an abundant number, since it is smaller than the sum of its proper divisors (119575504).

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

102201100 is a wasteful number, since it uses less digits than its factorization.

102201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022025 (or 1022018 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 102201100 is about 10109.4559695366. The cubic root of 102201100 is about 467.5397318172.

Adding to 102201100 its reverse (1102201), we get a palindrome (103303301).

The spelling of 102201100 in words is "one hundred two million, two hundred one thousand, one hundred".