1222021011212 has 48 divisors (see below), whose sum is σ = 2203861457952. Its totient is φ = 592560783360.

The previous prime is 1222021011203. The next prime is 1222021011217. The reversal of 1222021011212 is 2121101202221.

It is not an unprimeable number, because it can be changed into a prime (1222021011217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17259788 + ... + 17330444.

It is an arithmetic number, because the mean of its divisors is an integer number (45913780374).

Almost surely, 2^{1222021011212} is an apocalyptic number.

It is an amenable number.

1222021011212 is a deficient number, since it is larger than the sum of its proper divisors (981840446740).

1222021011212 is a wasteful number, since it uses less digits than its factorization.

1222021011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71418 (or 71416 counting only the distinct ones).

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

Adding to 1222021011212 its reverse (2121101202221), we get a palindrome (3343122213433).

The spelling of 1222021011212 in words is "one trillion, two hundred twenty-two billion, twenty-one million, eleven thousand, two hundred twelve".