21010232220204 has 48 divisors (see below), whose sum is σ = 49053244584960. Its totient is φ = 6999215993280.

The previous prime is 21010232220191. The next prime is 21010232220233. The reversal of 21010232220204 is 40202223201012.

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, 210075442 + ... + 210175430.

It is an arithmetic number, because the mean of its divisors is an integer number (1021942595520).

Almost surely, 2^{21010232220204} is an apocalyptic number.

It is an amenable number.

21010232220204 is an abundant number, since it is smaller than the sum of its proper divisors (28043012364756).

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

21010232220204 is a wasteful number, since it uses less digits than its factorization.

21010232220204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110310 (or 110308 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 21010232220204 its reverse (40202223201012), we get a palindrome (61212455421216).

The spelling of 21010232220204 in words is "twenty-one trillion, ten billion, two hundred thirty-two million, two hundred twenty thousand, two hundred four".