222102201100 has 72 divisors (see below), whose sum is σ = 522144268128. Its totient is φ = 81515827200.

The previous prime is 222102201091. The next prime is 222102201119. The reversal of 222102201100 is 1102201222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 294421 + ... + 728620.

It is an arithmetic number, because the mean of its divisors is an integer number (7252003724).

Almost surely, 2^222102201100 is an apocalyptic number.

222102201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222102201100 is an abundant number, since it is smaller than the sum of its proper divisors (300042067028).

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

222102201100 is a wasteful number, since it uses less digits than its factorization.

222102201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023235 (or 1023228 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 222102201100 its reverse (1102201222), we get a palindrome (223204402322).

The spelling of 222102201100 in words is "two hundred twenty-two billion, one hundred two million, two hundred one thousand, one hundred".