2122021121121 has 48 divisors (see below), whose sum is σ = 3385990333440. Its totient is φ = 1269914859360.

The previous prime is 2122021121119. The next prime is 2122021121147. The reversal of 2122021121121 is 1211211202212.

2122021121121 is a `hidden beast` number, since 2 + 1 + 220 + 211 + 211 + 21 = 666.

It is not a de Polignac number, because 2122021121121 - 2¹ = 2122021121119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2122021121094 and 2122021121103.

It is not an unprimeable number, because it can be changed into a prime (2122021121191) 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, 3238500 + ... + 3838218.

It is an arithmetic number, because the mean of its divisors is an integer number (70541465280).

Almost surely, 2^{2122021121121} is an apocalyptic number.

It is an amenable number.

2122021121121 is a deficient number, since it is larger than the sum of its proper divisors (1263969212319).

2122021121121 is a wasteful number, since it uses less digits than its factorization.

2122021121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600186 (or 600183 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2122021121121 its reverse (1211211202212), we get a palindrome (3333232323333).

The spelling of 2122021121121 in words is "two trillion, one hundred twenty-two billion, twenty-one million, one hundred twenty-one thousand, one hundred twenty-one".