23221020202 has 64 divisors (see below), whose sum is σ = 38831063040. Its totient is φ = 10365062400.

The previous prime is 23221020139. The next prime is 23221020209. The reversal of 23221020202 is 20202012232.

It is not an unprimeable number, because it can be changed into a prime (23221020209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18862927 + ... + 18864157.

It is an arithmetic number, because the mean of its divisors is an integer number (606735360).

Almost surely, 2^23221020202 is an apocalyptic number.

23221020202 is a deficient number, since it is larger than the sum of its proper divisors (15610042838).

23221020202 is a wasteful number, since it uses less digits than its factorization.

23221020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 23221020202 its reverse (20202012232), we get a palindrome (43423032434).

The spelling of 23221020202 in words is "twenty-three billion, two hundred twenty-one million, twenty thousand, two hundred two".