22121111002210 has 64 divisors (see below), whose sum is σ = 43572242183040. Its totient is φ = 8019156856320.

The previous prime is 22121111002189. The next prime is 22121111002213. The reversal of 22121111002210 is 1220011112122.

It is not an unprimeable number, because it can be changed into a prime (22121111002213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187317502 + ... + 187435558.

It is an arithmetic number, because the mean of its divisors is an integer number (680816284110).

Almost surely, 2^{22121111002210} is an apocalyptic number.

22121111002210 is a deficient number, since it is larger than the sum of its proper divisors (21451131180830).

22121111002210 is a wasteful number, since it uses less digits than its factorization.

22121111002210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123331.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22121111002210 its reverse (1220011112122), we get a palindrome (23341122114332).

The spelling of 22121111002210 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred eleven million, two thousand, two hundred ten".