21122133130 has 32 divisors (see below), whose sum is σ = 43480995840. Its totient is φ = 7236915840.

The previous prime is 21122133127. The next prime is 21122133181. The reversal of 21122133130 is 3133122112.

It is a super-2 number, since 2×21122133130² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21122133098 and 21122133107.

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, 406 + ... + 205534.

It is an arithmetic number, because the mean of its divisors is an integer number (1358781120).

Almost surely, 2^21122133130 is an apocalyptic number.

21122133130 is an abundant number, since it is smaller than the sum of its proper divisors (22358862710).

21122133130 is a wasteful number, since it uses less digits than its factorization.

21122133130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206614.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21122133130 its reverse (3133122112), we get a palindrome (24255255242).

The spelling of 21122133130 in words is "twenty-one billion, one hundred twenty-two million, one hundred thirty-three thousand, one hundred thirty".