21122114232 has 64 divisors (see below), whose sum is σ = 53492503680. Its totient is φ = 6949238912.

The previous prime is 21122114191. The next prime is 21122114269. The reversal of 21122114232 is 23241122112.

It is a happy number.

It is a super-2 number, since 2×21122114232² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 21122114199 and 21122114208.

It is a congruent number.

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, 2360038 + ... + 2368970.

It is an arithmetic number, because the mean of its divisors is an integer number (835820370).

Almost surely, 2^21122114232 is an apocalyptic number.

It is an amenable number.

21122114232 is an abundant number, since it is smaller than the sum of its proper divisors (32370389448).

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

21122114232 is a wasteful number, since it uses less digits than its factorization.

21122114232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10212 (or 10208 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

Adding to 21122114232 its reverse (23241122112), we get a palindrome (44363236344).

The spelling of 21122114232 in words is "twenty-one billion, one hundred twenty-two million, one hundred fourteen thousand, two hundred thirty-two".