102132231122021 has 2 divisors, whose sum is σ = 102132231122022. Its totient is φ = 102132231122020.

The previous prime is 102132231121969. The next prime is 102132231122023. The reversal of 102132231122021 is 120221132231201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83523697156900 + 18608533965121 = 9139130^2 + 4313761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102132231122021 is a prime.

It is a super-2 number, since 2×102132231122021² (a number of 29 digits) contains 22 as substring.

Together with 102132231122023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102132231122023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51066115561010 + 51066115561011.

It is an arithmetic number, because the mean of its divisors is an integer number (51066115561011).

Almost surely, 2^{102132231122021} is an apocalyptic number.

It is an amenable number.

102132231122021 is a deficient number, since it is larger than the sum of its proper divisors (1).

102132231122021 is an equidigital number, since it uses as much as digits as its factorization.

102132231122021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 102132231122021 its reverse (120221132231201), we get a palindrome (222353363353222).

The spelling of 102132231122021 in words is "one hundred two trillion, one hundred thirty-two billion, two hundred thirty-one million, one hundred twenty-two thousand, twenty-one".