102121002121101 has 16 divisors (see below), whose sum is σ = 136731078570240. Its totient is φ = 67796369484800.

The previous prime is 102121002121091. The next prime is 102121002121157. The reversal of 102121002121101 is 101121200121201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 102121002121101 - 2¹⁸ = 102121001858957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121002125101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70862181 + ... + 72288938.

It is an arithmetic number, because the mean of its divisors is an integer number (8545692410640).

Almost surely, 2^{102121002121101} is an apocalyptic number.

It is an amenable number.

102121002121101 is a deficient number, since it is larger than the sum of its proper divisors (34610076449139).

102121002121101 is a wasteful number, since it uses less digits than its factorization.

102121002121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143152116.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102121002121101 its reverse (101121200121201), we get a palindrome (203242202242302).

The spelling of 102121002121101 in words is "one hundred two trillion, one hundred twenty-one billion, two million, one hundred twenty-one thousand, one hundred one".