221010022000 has 40 divisors (see below), whose sum is σ = 534402238032. Its totient is φ = 88404008000.

The previous prime is 221010021949. The next prime is 221010022003. The reversal of 221010022000 is 220010122.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221010022003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55250506 + ... + 55254505.

Almost surely, 2^221010022000 is an apocalyptic number.

221010022000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221010022000 is an abundant number, since it is smaller than the sum of its proper divisors (313392216032).

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

221010022000 is a wasteful number, since it uses less digits than its factorization.

221010022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110505034 (or 110505018 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 221010022000 its reverse (220010122), we get a palindrome (221230032122).

The spelling of 221010022000 in words is "two hundred twenty-one billion, ten million, twenty-two thousand".