2120522511121 has 16 divisors (see below), whose sum is σ = 2458904692608. Its totient is φ = 1791048585600.

The previous prime is 2120522511059. The next prime is 2120522511157. The reversal of 2120522511121 is 1211152250212.

It is a cyclic number.

It is not a de Polignac number, because 2120522511121 - 2³⁷ = 1983083557649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120522011121) 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, 1344310 + ... + 2459311.

It is an arithmetic number, because the mean of its divisors is an integer number (153681543288).

Almost surely, 2^{2120522511121} is an apocalyptic number.

It is an amenable number.

2120522511121 is a deficient number, since it is larger than the sum of its proper divisors (338382181487).

2120522511121 is a wasteful number, since it uses less digits than its factorization.

2120522511121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3804792.

The product of its (nonzero) digits is 800, while the sum is 25.

Adding to 2120522511121 its reverse (1211152250212), we get a palindrome (3331674761333).

The spelling of 2120522511121 in words is "two trillion, one hundred twenty billion, five hundred twenty-two million, five hundred eleven thousand, one hundred twenty-one".