22221123111210 has 32 divisors (see below), whose sum is σ = 54465391118592. Its totient is φ = 5799555535040.

The previous prime is 22221123111199. The next prime is 22221123111223. The reversal of 22221123111210 is 1211132112222.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7879829481 + ... + 7879832300.

It is an arithmetic number, because the mean of its divisors is an integer number (1702043472456).

Almost surely, 2^{22221123111210} is an apocalyptic number.

22221123111210 is an abundant number, since it is smaller than the sum of its proper divisors (32244268007382).

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

22221123111210 is a wasteful number, since it uses less digits than its factorization.

22221123111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15759661838.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 22221123111210 its reverse (1211132112222), we get a palindrome (23432255223432).

The spelling of 22221123111210 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred twenty-three million, one hundred eleven thousand, two hundred ten".