102122100220157 has 2 divisors, whose sum is σ = 102122100220158. Its totient is φ = 102122100220156.

The previous prime is 102122100220123. The next prime is 102122100220277. The reversal of 102122100220157 is 751022001221201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96137907340036 + 5984192880121 = 9804994^2 + 2446261^2 .

It is a cyclic number.

It is not a de Polignac number, because 102122100220157 - 2²² = 102122096025853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102122100210157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51061050110078 + 51061050110079.

It is an arithmetic number, because the mean of its divisors is an integer number (51061050110079).

Almost surely, 2^{102122100220157} is an apocalyptic number.

It is an amenable number.

102122100220157 is a deficient number, since it is larger than the sum of its proper divisors (1).

102122100220157 is an equidigital number, since it uses as much as digits as its factorization.

102122100220157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 26.

Adding to 102122100220157 its reverse (751022001221201), we get a palindrome (853144101441358).

The spelling of 102122100220157 in words is "one hundred two trillion, one hundred twenty-two billion, one hundred million, two hundred twenty thousand, one hundred fifty-seven".