102010100211121 has 2 divisors, whose sum is σ = 102010100211122. Its totient is φ = 102010100211120.

The previous prime is 102010100211083. The next prime is 102010100211181. The reversal of 102010100211121 is 121112001010201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88772953363600 + 13237146847521 = 9421940^2 + 3638289^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102010100211121 is a prime.

It is not a weakly prime, because it can be changed into another prime (102010100211181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51005050105560 + 51005050105561.

It is an arithmetic number, because the mean of its divisors is an integer number (51005050105561).

Almost surely, 2^{102010100211121} is an apocalyptic number.

It is an amenable number.

102010100211121 is a deficient number, since it is larger than the sum of its proper divisors (1).

102010100211121 is an equidigital number, since it uses as much as digits as its factorization.

102010100211121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102010100211121 its reverse (121112001010201), we get a palindrome (223122101221322).

The spelling of 102010100211121 in words is "one hundred two trillion, ten billion, one hundred million, two hundred eleven thousand, one hundred twenty-one".