222121111100202 has 64 divisors (see below), whose sum is σ = 494294587987200. Its totient is φ = 73936557984960.

The previous prime is 222121111100201. The next prime is 222121111100257. The reversal of 222121111100202 is 202001111121222.

222121111100202 is a `hidden beast` number, since 222 + 121 + 11 + 110 + 0 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (222121111100201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2800665324 + ... + 2800744632.

It is an arithmetic number, because the mean of its divisors is an integer number (7723352937300).

Almost surely, 2^{222121111100202} is an apocalyptic number.

222121111100202 is an abundant number, since it is smaller than the sum of its proper divisors (272173476886998).

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

222121111100202 is a wasteful number, since it uses less digits than its factorization.

222121111100202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151388 (or 151382 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 222121111100202 its reverse (202001111121222), we get a palindrome (424122222221424).

The spelling of 222121111100202 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred eleven million, one hundred thousand, two hundred two".