22212212221210 has 16 divisors (see below), whose sum is σ = 43616707634592. Its totient is φ = 8077168080400.

The previous prime is 22212212221169. The next prime is 22212212221229. The reversal of 22212212221210 is 1212221221222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100964600896 + ... + 100964601115.

It is an arithmetic number, because the mean of its divisors is an integer number (2726044227162).

Almost surely, 2^{22212212221210} is an apocalyptic number.

22212212221210 is a deficient number, since it is larger than the sum of its proper divisors (21404495413382).

22212212221210 is a wasteful number, since it uses less digits than its factorization.

22212212221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201929202029.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 22212212221210 its reverse (1212221221222), we get a palindrome (23424433442432).

It can be divided in two parts, 22212212 and 221210, that added together give a palindrome (22433422).

The spelling of 22212212221210 in words is "twenty-two trillion, two hundred twelve billion, two hundred twelve million, two hundred twenty-one thousand, two hundred ten".