213023022072 has 64 divisors (see below), whose sum is σ = 608675558400. Its totient is φ = 60859885440.

The previous prime is 213023021999. The next prime is 213023022073. The reversal of 213023022072 is 270220320312.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213023022073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3639922 + ... + 3697982.

It is an arithmetic number, because the mean of its divisors is an integer number (9510555600).

Almost surely, 2^213023022072 is an apocalyptic number.

It is an amenable number.

213023022072 is an abundant number, since it is smaller than the sum of its proper divisors (395652536328).

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

213023022072 is a wasteful number, since it uses less digits than its factorization.

213023022072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79916 (or 79912 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

Adding to 213023022072 its reverse (270220320312), we get a palindrome (483243342384).

The spelling of 213023022072 in words is "two hundred thirteen billion, twenty-three million, twenty-two thousand, seventy-two".