102102001010121 has 48 divisors (see below), whose sum is σ = 158820437415168. Its totient is φ = 58175363232000.

The previous prime is 102102001010071. The next prime is 102102001010171. The reversal of 102102001010121 is 121010100201201.

It is an interprime number because it is at equal distance from previous prime (102102001010071) and next prime (102102001010171).

It is not a de Polignac number, because 102102001010121 - 2⁶ = 102102001010057 is a prime.

It is a super-2 number, since 2×102102001010121² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102102001010097 and 102102001010106.

It is not an unprimeable number, because it can be changed into a prime (102102001010171) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 110605171 + ... + 111524471.

It is an arithmetic number, because the mean of its divisors is an integer number (3308759112816).

Almost surely, 2^{102102001010121} is an apocalyptic number.

It is an amenable number.

102102001010121 is a deficient number, since it is larger than the sum of its proper divisors (56718436405047).

102102001010121 is a wasteful number, since it uses less digits than its factorization.

102102001010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921502 (or 921495 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102102001010121 its reverse (121010100201201), we get a palindrome (223112101211322).

The spelling of 102102001010121 in words is "one hundred two trillion, one hundred two billion, one million, ten thousand, one hundred twenty-one".