1222220012210 has 32 divisors (see below), whose sum is σ = 2211465549312. Its totient is φ = 486344960640.

The previous prime is 1222220012207. The next prime is 1222220012267. The reversal of 1222220012210 is 122100222221.

It is a happy number.

It is a super-2 number, since 2×1222220012210² (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 15 ways as a sum of consecutive naturals, for example, 1347389 + ... + 2063951.

It is an arithmetic number, because the mean of its divisors is an integer number (69108298416).

Almost surely, 2^{1222220012210} is an apocalyptic number.

1222220012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222220012210 is a deficient number, since it is larger than the sum of its proper divisors (989245537102).

1222220012210 is a wasteful number, since it uses less digits than its factorization.

1222220012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717458.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1222220012210 its reverse (122100222221), we get a palindrome (1344320234431).

The spelling of 1222220012210 in words is "one trillion, two hundred twenty-two billion, two hundred twenty million, twelve thousand, two hundred ten".