1222021112210 has 16 divisors (see below), whose sum is σ = 2199708959616. Its totient is φ = 488792676528.

The previous prime is 1222021112171. The next prime is 1222021112243. The reversal of 1222021112210 is 122111202221.

It is a super-2 number, since 2×1222021112210² (a number of 25 digits) contains 22 as substring.

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, 1642952 + ... + 2267891.

It is an arithmetic number, because the mean of its divisors is an integer number (137481809976).

Almost surely, 2^{1222021112210} is an apocalyptic number.

1222021112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222021112210 is a deficient number, since it is larger than the sum of its proper divisors (977687847406).

1222021112210 is a wasteful number, since it uses less digits than its factorization.

1222021112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3942097.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1222021112210 its reverse (122111202221), we get a palindrome (1344132314431).

The spelling of 1222021112210 in words is "one trillion, two hundred twenty-two billion, twenty-one million, one hundred twelve thousand, two hundred ten".