102101220109951 has 2 divisors, whose sum is σ = 102101220109952. Its totient is φ = 102101220109950.

The previous prime is 102101220109877. The next prime is 102101220110051. The reversal of 102101220109951 is 159901022101201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102101220109951 - 2⁴¹ = 99902196854399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102101220109451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050610054975 + 51050610054976.

It is an arithmetic number, because the mean of its divisors is an integer number (51050610054976).

Almost surely, 2^{102101220109951} is an apocalyptic number.

102101220109951 is a deficient number, since it is larger than the sum of its proper divisors (1).

102101220109951 is an equidigital number, since it uses as much as digits as its factorization.

102101220109951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 34.

The spelling of 102101220109951 in words is "one hundred two trillion, one hundred one billion, two hundred twenty million, one hundred nine thousand, nine hundred fifty-one".