221443214132100 has 144 divisors (see below), whose sum is σ = 666354932499200. Its totient is φ = 56728251141120.

The previous prime is 221443214132083. The next prime is 221443214132209. The reversal of 221443214132100 is 1231412344122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 125387905 + ... + 127141704.

Almost surely, 2^{221443214132100} is an apocalyptic number.

221443214132100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221443214132100 is an abundant number, since it is smaller than the sum of its proper divisors (444911718367100).

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

221443214132100 is a wasteful number, since it uses less digits than its factorization.

221443214132100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252529742 (or 252529735 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 221443214132100 its reverse (1231412344122), we get a palindrome (222674626476222).

The spelling of 221443214132100 in words is "two hundred twenty-one trillion, four hundred forty-three billion, two hundred fourteen million, one hundred thirty-two thousand, one hundred".