21122002224132 has 12 divisors (see below), whose sum is σ = 49284671856336. Its totient is φ = 7040667408040.

The previous prime is 21122002224131. The next prime is 21122002224179. The reversal of 21122002224132 is 23142220022112.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×21122002224132² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21122002224131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 880083425994 + ... + 880083426017.

It is an arithmetic number, because the mean of its divisors is an integer number (4107055988028).

Almost surely, 2^{21122002224132} is an apocalyptic number.

It is an amenable number.

21122002224132 is an abundant number, since it is smaller than the sum of its proper divisors (28162669632204).

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

21122002224132 is a wasteful number, since it uses less digits than its factorization.

21122002224132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760166852018 (or 1760166852016 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21122002224132 its reverse (23142220022112), we get a palindrome (44264222246244).

The spelling of 21122002224132 in words is "twenty-one trillion, one hundred twenty-two billion, two million, two hundred twenty-four thousand, one hundred thirty-two".