20021132013132 has 12 divisors (see below), whose sum is σ = 46715974697336. Its totient is φ = 6673710671040.

The previous prime is 20021132013131. The next prime is 20021132013151. The reversal of 20021132013132 is 23131023112002.

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

It is a super-2 number, since 2×20021132013132² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20021132013099 and 20021132013108.

It is not an unprimeable number, because it can be changed into a prime (20021132013131) 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, 834213833869 + ... + 834213833892.

Almost surely, 2^{20021132013132} is an apocalyptic number.

It is an amenable number.

20021132013132 is an abundant number, since it is smaller than the sum of its proper divisors (26694842684204).

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

20021132013132 is a wasteful number, since it uses less digits than its factorization.

20021132013132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668427667768 (or 1668427667766 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20021132013132 its reverse (23131023112002), we get a palindrome (43152155125134).

The spelling of 20021132013132 in words is "twenty trillion, twenty-one billion, one hundred thirty-two million, thirteen thousand, one hundred thirty-two".