221222022000 has 160 divisors (see below), whose sum is σ = 815108496384. Its totient is φ = 50565024000.

The previous prime is 221222021981. The next prime is 221222022011. The reversal of 221222022000 is 220222122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2591596 + ... + 2675595.

Almost surely, 2^221222022000 is an apocalyptic number.

221222022000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221222022000 is an abundant number, since it is smaller than the sum of its proper divisors (593886474384).

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

221222022000 is a wasteful number, since it uses less digits than its factorization.

221222022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5267224 (or 5267208 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 221222022000 its reverse (220222122), we get a palindrome (221442244122).

The spelling of 221222022000 in words is "two hundred twenty-one billion, two hundred twenty-two million, twenty-two thousand".