221210002032144 has 80 divisors (see below), whose sum is σ = 583777680033600. Its totient is φ = 72154524169728.

The previous prime is 221210002032139. The next prime is 221210002032281. The reversal of 221210002032144 is 441230200012122.

It is a super-2 number, since 2×221210002032144² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 113750359 + ... + 115678710.

It is an arithmetic number, because the mean of its divisors is an integer number (7297221000420).

Almost surely, 2^{221210002032144} is an apocalyptic number.

221210002032144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

221210002032144 is an abundant number, since it is smaller than the sum of its proper divisors (362567678001456).

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

221210002032144 is a wasteful number, since it uses less digits than its factorization.

221210002032144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229429512 (or 229429506 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 221210002032144 its reverse (441230200012122), we get a palindrome (662440202044266).

The spelling of 221210002032144 in words is "two hundred twenty-one trillion, two hundred ten billion, two million, thirty-two thousand, one hundred forty-four".