1220022321200 has 30 divisors (see below), whose sum is σ = 2931103627644. Its totient is φ = 488008928320.

The previous prime is 1220022321197. The next prime is 1220022321211. The reversal of 1220022321200 is 21232200221.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1525027502 + ... + 1525028301.

Almost surely, 2^{1220022321200} is an apocalyptic number.

1220022321200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220022321200 is an abundant number, since it is smaller than the sum of its proper divisors (1711081306444).

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

1220022321200 is a wasteful number, since it uses less digits than its factorization.

1220022321200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3050055821 (or 3050055810 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 1220022321200 its reverse (21232200221), we get a palindrome (1241254521421).

The spelling of 1220022321200 in words is "one trillion, two hundred twenty billion, twenty-two million, three hundred twenty-one thousand, two hundred".