22111120121210 has 8 divisors (see below), whose sum is σ = 39800016218196. Its totient is φ = 8844448048480.

The previous prime is 22111120121191. The next prime is 22111120121267. The reversal of 22111120121210 is 1212102111122.

It can be written as a sum of positive squares in 2 ways, for example, as 19779980505961 + 2331139615249 = 4447469^2 + 1526807^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1105556006051 + ... + 1105556006070.

Almost surely, 2^{22111120121210} is an apocalyptic number.

22111120121210 is a deficient number, since it is larger than the sum of its proper divisors (17688896096986).

22111120121210 is a wasteful number, since it uses less digits than its factorization.

22111120121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2211112012128.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22111120121210 its reverse (1212102111122), we get a palindrome (23323222232332).

The spelling of 22111120121210 in words is "twenty-two trillion, one hundred eleven billion, one hundred twenty million, one hundred twenty-one thousand, two hundred ten".