1012122021121 has 16 divisors (see below), whose sum is σ = 1103166691200. Its totient is φ = 924917107968.

The previous prime is 1012122021077. The next prime is 1012122021203. The reversal of 1012122021121 is 1211202212101.

1012122021121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1012122021121 - 2²⁵ = 1012088466689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012122021095 and 1012122021104.

It is not an unprimeable number, because it can be changed into a prime (1012122028121) 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, 278296 + ... + 1449721.

It is an arithmetic number, because the mean of its divisors is an integer number (68947918200).

Almost surely, 2^{1012122021121} is an apocalyptic number.

It is an amenable number.

1012122021121 is a deficient number, since it is larger than the sum of its proper divisors (91044670079).

1012122021121 is a wasteful number, since it uses less digits than its factorization.

1012122021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729128.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1012122021121 its reverse (1211202212101), we get a palindrome (2223324233222).

The spelling of 1012122021121 in words is "one trillion, twelve billion, one hundred twenty-two million, twenty-one thousand, one hundred twenty-one".