23021302212 has 72 divisors (see below), whose sum is σ = 60205017600. Its totient is φ = 7409525760.

The previous prime is 23021302193. The next prime is 23021302247. The reversal of 23021302212 is 21220312032.

23021302212 is a `hidden beast` number, since 230 + 213 + 0 + 221 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 478113 + ... + 524055.

It is an arithmetic number, because the mean of its divisors is an integer number (836180800).

Almost surely, 2^23021302212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23021302212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30102508800).

23021302212 is an abundant number, since it is smaller than the sum of its proper divisors (37183715388).

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

23021302212 is a wasteful number, since it uses less digits than its factorization.

23021302212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46433 (or 46428 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 23021302212 its reverse (21220312032), we get a palindrome (44241614244).

The spelling of 23021302212 in words is "twenty-three billion, twenty-one million, three hundred two thousand, two hundred twelve".