212222221112210 has 32 divisors (see below), whose sum is σ = 383991339992832. Its totient is φ = 84446485300800.

The previous prime is 212222221112201. The next prime is 212222221112227. The reversal of 212222221112210 is 12211122222212.

It is a super-2 number, since 2×212222221112210² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

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, 7154099 + ... + 21808841.

It is an arithmetic number, because the mean of its divisors is an integer number (11999729374776).

Almost surely, 2^{212222221112210} is an apocalyptic number.

212222221112210 is a deficient number, since it is larger than the sum of its proper divisors (171769118880622).

212222221112210 is a wasteful number, since it uses less digits than its factorization.

212222221112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14662298.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 212222221112210 its reverse (12211122222212), we get a palindrome (224433343334422).

The spelling of 212222221112210 in words is "two hundred twelve trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred twelve thousand, two hundred ten".