2021201201121 has 16 divisors (see below), whose sum is σ = 2732957687808. Its totient is φ = 1328457006800.

The previous prime is 2021201201119. The next prime is 2021201201141. The reversal of 2021201201121 is 1211021021202.

It is a cyclic number.

It is not a de Polignac number, because 2021201201121 - 2¹ = 2021201201119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2021201201121.

It is not an unprimeable number, because it can be changed into a prime (2021201201141) 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, 11493760 + ... + 11668286.

It is an arithmetic number, because the mean of its divisors is an integer number (170809855488).

Almost surely, 2^{2021201201121} is an apocalyptic number.

It is an amenable number.

2021201201121 is a deficient number, since it is larger than the sum of its proper divisors (711756486687).

2021201201121 is a wasteful number, since it uses less digits than its factorization.

2021201201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228972.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2021201201121 its reverse (1211021021202), we get a palindrome (3232222222323).

The spelling of 2021201201121 in words is "two trillion, twenty-one billion, two hundred one million, two hundred one thousand, one hundred twenty-one".