121010021121101 has 16 divisors (see below), whose sum is σ = 139673042858880. Its totient is φ = 102691065364800.

The previous prime is 121010021121043. The next prime is 121010021121107. The reversal of 121010021121101 is 101121120010121.

It is a cyclic number.

It is not a de Polignac number, because 121010021121101 - 2¹⁸ = 121010020858957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121010021121107) 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, 10975835 + ... + 19039143.

It is an arithmetic number, because the mean of its divisors is an integer number (8729565178680).

Almost surely, 2^{121010021121101} is an apocalyptic number.

It is an amenable number.

121010021121101 is a deficient number, since it is larger than the sum of its proper divisors (18663021737779).

121010021121101 is a wasteful number, since it uses less digits than its factorization.

121010021121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8084644.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121010021121101 its reverse (101121120010121), we get a palindrome (222131141131222).

The spelling of 121010021121101 in words is "one hundred twenty-one trillion, ten billion, twenty-one million, one hundred twenty-one thousand, one hundred one".