222121122110010 has 96 divisors (see below), whose sum is σ = 579207649812480. Its totient is φ = 59058784425984.

The previous prime is 222121122110003. The next prime is 222121122110059. The reversal of 222121122110010 is 10011221121222.

222121122110010 is a `hidden beast` number, since 2 + 221 + 211 + 221 + 1 + 0 + 0 + 10 = 666.

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

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, 107105311 + ... + 109159469.

It is an arithmetic number, because the mean of its divisors is an integer number (6033413018880).

Almost surely, 2^{222121122110010} is an apocalyptic number.

222121122110010 is an abundant number, since it is smaller than the sum of its proper divisors (357086527702470).

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

222121122110010 is a wasteful number, since it uses less digits than its factorization.

222121122110010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057692 (or 2057689 counting only the distinct ones).

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

Adding to 222121122110010 its reverse (10011221121222), we get a palindrome (232132343231232).

The spelling of 222121122110010 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred ten thousand, ten".