20212132102021 has 16 divisors (see below), whose sum is σ = 20935753776000. Its totient is φ = 19502175071808.

The previous prime is 20212132101991. The next prime is 20212132102033. The reversal of 20212132102021 is 12020123121202.

It is a cyclic number.

It is not a de Polignac number, because 20212132102021 - 2⁵ = 20212132101989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20212132102021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212132102051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2624166 + ... + 6878263.

It is an arithmetic number, because the mean of its divisors is an integer number (1308484611000).

Almost surely, 2^{20212132102021} is an apocalyptic number.

It is an amenable number.

20212132102021 is a deficient number, since it is larger than the sum of its proper divisors (723621673979).

20212132102021 is an equidigital number, since it uses as much as digits as its factorization.

20212132102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9503148.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20212132102021 its reverse (12020123121202), we get a palindrome (32232255223223).

The spelling of 20212132102021 in words is "twenty trillion, two hundred twelve billion, one hundred thirty-two million, one hundred two thousand, twenty-one".