132012100021 has 4 divisors (see below), whose sum is σ = 132013010944. Its totient is φ = 132011189100.

The previous prime is 132012100019. The next prime is 132012100043. The reversal of 132012100021 is 120001210231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 132012100021 - 2¹ = 132012100019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132012099974 and 132012100010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132012100001) 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, 184245 + ... + 545866.

It is an arithmetic number, because the mean of its divisors is an integer number (33003252736).

Almost surely, 2^132012100021 is an apocalyptic number.

It is an amenable number.

132012100021 is a deficient number, since it is larger than the sum of its proper divisors (910923).

132012100021 is an equidigital number, since it uses as much as digits as its factorization.

132012100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910922.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 132012100021 its reverse (120001210231), we get a palindrome (252013310252).

The spelling of 132012100021 in words is "one hundred thirty-two billion, twelve million, one hundred thousand, twenty-one".