121120242021121 has 16 divisors (see below), whose sum is σ = 145902581340160. Its totient is φ = 98222316066000.

The previous prime is 121120242021109. The next prime is 121120242021157.

121120242021121 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 121120242021121 - 2³⁷ = 120982803067649 is a prime.

It is a super-2 number, since 2×121120242021121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121120242021092 and 121120242021101.

It is not an unprimeable number, because it can be changed into a prime (121120242021161) 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, 606210711 + ... + 606410476.

It is an arithmetic number, because the mean of its divisors is an integer number (9118911333760).

Almost surely, 2^{121120242021121} is an apocalyptic number.

It is an amenable number.

121120242021121 is a deficient number, since it is larger than the sum of its proper divisors (24782339319039).

121120242021121 is a wasteful number, since it uses less digits than its factorization.

121120242021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212621964.

The product of its (nonzero) digits is 256, while the sum is 22.

The spelling of 121120242021121 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred forty-two million, twenty-one thousand, one hundred twenty-one".