1220022055026 has 64 divisors (see below), whose sum is σ = 2718821064960. Its totient is φ = 405526049280.

The previous prime is 1220022055019. The next prime is 1220022055037. The reversal of 1220022055026 is 6205502200221.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39989410 + ... + 40019906.

It is an arithmetic number, because the mean of its divisors is an integer number (42481579140).

Almost surely, 2^{1220022055026} is an apocalyptic number.

1220022055026 is an abundant number, since it is smaller than the sum of its proper divisors (1498799009934).

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

1220022055026 is a wasteful number, since it uses less digits than its factorization.

1220022055026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32576 (or 32570 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 1220022055026 its reverse (6205502200221), we get a palindrome (7425524255247).

The spelling of 1220022055026 in words is "one trillion, two hundred twenty billion, twenty-two million, fifty-five thousand, twenty-six".