222212121010 has 192 divisors, whose sum is σ = 473412159360. Its totient is φ = 74815488000.

The previous prime is 222212120987. The next prime is 222212121049. The reversal of 222212121010 is 10121212222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 192724594 + ... + 192725746.

It is an arithmetic number, because the mean of its divisors is an integer number (2465688330).

Almost surely, 2^222212121010 is an apocalyptic number.

222212121010 is an abundant number, since it is smaller than the sum of its proper divisors (251200038350).

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

222212121010 is a wasteful number, since it uses less digits than its factorization.

222212121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385 (or 1374 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222212121010 its reverse (10121212222), we get a palindrome (232333333232).

It can be divided in two parts, 22221212 and 1010, that added together give a palindrome (22222222).

The spelling of 222212121010 in words is "two hundred twenty-two billion, two hundred twelve million, one hundred twenty-one thousand, ten".