222121121002110 has 96 divisors (see below), whose sum is σ = 657408282306048. Its totient is φ = 51506346893760.

The previous prime is 222121121002021. The next prime is 222121121002127. The reversal of 222121121002110 is 11200121121222.

222121121002110 is a `hidden beast` number, since 2 + 221 + 21 + 1 + 210 + 0 + 211 + 0 = 666.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4877472202 + ... + 4877517741.

It is an arithmetic number, because the mean of its divisors is an integer number (6848002940688).

Almost surely, 2^{222121121002110} is an apocalyptic number.

222121121002110 is an abundant number, since it is smaller than the sum of its proper divisors (435287161303938).

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

222121121002110 is a wasteful number, since it uses less digits than its factorization.

222121121002110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9754989990 (or 9754989987 counting only the distinct ones).

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

Adding to 222121121002110 its reverse (11200121121222), we get a palindrome (233321242123332).

The spelling of 222121121002110 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred twenty-one million, two thousand, one hundred ten".