21033231031022 has 24 divisors (see below), whose sum is σ = 36750911387976. Its totient is φ = 9001944101808.

The previous prime is 21033231030983. The next prime is 21033231031081. The reversal of 21033231031022 is 22013013233012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146329808 + ... + 146473475.

It is an arithmetic number, because the mean of its divisors is an integer number (1531287974499).

Almost surely, 2^{21033231031022} is an apocalyptic number.

21033231031022 is a deficient number, since it is larger than the sum of its proper divisors (15717680356954).

21033231031022 is a wasteful number, since it uses less digits than its factorization.

21033231031022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292804032 (or 292804025 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21033231031022 its reverse (22013013233012), we get a palindrome (43046244264034).

The spelling of 21033231031022 in words is "twenty-one trillion, thirty-three billion, two hundred thirty-one million, thirty-one thousand, twenty-two".