23211020212 has 6 divisors (see below), whose sum is σ = 40619285378. Its totient is φ = 11605510104.

The previous prime is 23211020149. The next prime is 23211020221. The reversal of 23211020212 is 21202011232.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17549360676 + 5661659536 = 132474^2 + 75244^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2901377523 + ... + 2901377530.

Almost surely, 2^23211020212 is an apocalyptic number.

It is an amenable number.

23211020212 is a deficient number, since it is larger than the sum of its proper divisors (17408265166).

23211020212 is a wasteful number, since it uses less digits than its factorization.

23211020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5802755057 (or 5802755055 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 23211020212 its reverse (21202011232), we get a palindrome (44413031444).

It can be divided in two parts, 23211020 and 212, that added together give a palindrome (23211232).

The spelling of 23211020212 in words is "twenty-three billion, two hundred eleven million, twenty thousand, two hundred twelve".