1222545431020 has 24 divisors (see below), whose sum is σ = 2568142605168. Its totient is φ = 488866324800.

The previous prime is 1222545430987. The next prime is 1222545431033. The reversal of 1222545431020 is 201345452221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9424446 + ... + 9553285.

It is an arithmetic number, because the mean of its divisors is an integer number (107005941882).

Almost surely, 2^{1222545431020} is an apocalyptic number.

1222545431020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222545431020 is an abundant number, since it is smaller than the sum of its proper divisors (1345597174148).

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

1222545431020 is a wasteful number, since it uses less digits than its factorization.

1222545431020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18980961 (or 18980959 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 1222545431020 in words is "one trillion, two hundred twenty-two billion, five hundred forty-five million, four hundred thirty-one thousand, twenty".