2111201201121 has 8 divisors (see below), whose sum is σ = 2816189930400. Its totient is φ = 1406839969632.

The previous prime is 2111201201063. The next prime is 2111201201183. The reversal of 2111201201121 is 1211021021112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2111201201121 - 2²⁶ = 2111134092257 is a prime.

It is a super-2 number, since 2×2111201201121² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2111201201121.

It is not an unprimeable number, because it can be changed into a prime (2111201203121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156866596 + ... + 156880053.

It is an arithmetic number, because the mean of its divisors is an integer number (352023741300).

Almost surely, 2^{2111201201121} is an apocalyptic number.

It is an amenable number.

2111201201121 is a deficient number, since it is larger than the sum of its proper divisors (704988729279).

2111201201121 is a wasteful number, since it uses less digits than its factorization.

2111201201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313748895.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2111201201121 its reverse (1211021021112), we get a palindrome (3322222222233).

The spelling of 2111201201121 in words is "two trillion, one hundred eleven billion, two hundred one million, two hundred one thousand, one hundred twenty-one".