21010132122 has 16 divisors (see below), whose sum is σ = 48023159232. Its totient is φ = 6002894880.

The previous prime is 21010132093. The next prime is 21010132139. The reversal of 21010132122 is 22123101012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250120579 + ... + 250120662.

It is an arithmetic number, because the mean of its divisors is an integer number (3001447452).

Almost surely, 2^21010132122 is an apocalyptic number.

21010132122 is an abundant number, since it is smaller than the sum of its proper divisors (27013027110).

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

21010132122 is a wasteful number, since it uses less digits than its factorization.

21010132122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500241253.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21010132122 its reverse (22123101012), we get a palindrome (43133233134).

The spelling of 21010132122 in words is "twenty-one billion, ten million, one hundred thirty-two thousand, one hundred twenty-two".