220444442000 has 80 divisors (see below), whose sum is σ = 537104265984. Its totient is φ = 87504560000.

The previous prime is 220444441993. The next prime is 220444442047. The reversal of 220444442000 is 244444022.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158696 + ... + 682695.

Almost surely, 2^220444442000 is an apocalyptic number.

220444442000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220444442000 is an abundant number, since it is smaller than the sum of its proper divisors (316659823984).

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

220444442000 is a wasteful number, since it uses less digits than its factorization.

220444442000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841545 (or 841529 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 220444442000 its reverse (244444022), we get a palindrome (220688886022).

The spelling of 220444442000 in words is "two hundred twenty billion, four hundred forty-four million, four hundred forty-two thousand".