1222020211012 has 6 divisors (see below), whose sum is σ = 2138535369278. Its totient is φ = 611010105504.

The previous prime is 1222020211003. The next prime is 1222020211031. The reversal of 1222020211012 is 2101120202221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1078179029316 + 143841181696 = 1038354^2 + 379264^2 .

It is a super-2 number, since 2×1222020211012² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152752526373 + ... + 152752526380.

Almost surely, 2^{1222020211012} is an apocalyptic number.

It is an amenable number.

1222020211012 is a deficient number, since it is larger than the sum of its proper divisors (916515158266).

1222020211012 is a wasteful number, since it uses less digits than its factorization.

1222020211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305505052757 (or 305505052755 counting only the distinct ones).

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

Adding to 1222020211012 its reverse (2101120202221), we get a palindrome (3323140413233).

The spelling of 1222020211012 in words is "one trillion, two hundred twenty-two billion, twenty million, two hundred eleven thousand, twelve".