21220323022000 has 80 divisors (see below), whose sum is σ = 51395275706112. Its totient is φ = 8474144985600.

The previous prime is 21220323021977. The next prime is 21220323022027. The reversal of 21220323022000 is 22032302212.

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, 7525837 + ... + 9953836.

Almost surely, 2^{21220323022000} is an apocalyptic number.

21220323022000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21220323022000 is an abundant number, since it is smaller than the sum of its proper divisors (30174952684112).

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

21220323022000 is a wasteful number, since it uses less digits than its factorization.

21220323022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17480303 (or 17480287 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 21220323022000 its reverse (22032302212), we get a palindrome (21242355324212).

The spelling of 21220323022000 in words is "twenty-one trillion, two hundred twenty billion, three hundred twenty-three million, twenty-two thousand".