1222879267952 has 20 divisors (see below), whose sum is σ = 2472342868560. Its totient is φ = 584855301888.

The previous prime is 1222879267913. The next prime is 1222879268029. The reversal of 1222879267952 is 2597629782221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1661520377 + ... + 1661521112.

It is an arithmetic number, because the mean of its divisors is an integer number (123617143428).

Almost surely, 2^{1222879267952} is an apocalyptic number.

It is an amenable number.

1222879267952 is an abundant number, since it is smaller than the sum of its proper divisors (1249463600608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222879267952 is a wasteful number, since it uses less digits than its factorization.

1222879267952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323041520 (or 3323041514 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 62.

The spelling of 1222879267952 in words is "one trillion, two hundred twenty-two billion, eight hundred seventy-nine million, two hundred sixty-seven thousand, nine hundred fifty-two".