2120222311121 has 2 divisors, whose sum is σ = 2120222311122. Its totient is φ = 2120222311120.

The previous prime is 2120222311099. The next prime is 2120222311157. The reversal of 2120222311121 is 1211132220212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1983277907521 + 136944403600 = 1408289^2 + 370060^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120222311121 - 2¹⁴ = 2120222294737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2120222311093 and 2120222311102.

It is not a weakly prime, because it can be changed into another prime (2120222311021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060111155560 + 1060111155561.

It is an arithmetic number, because the mean of its divisors is an integer number (1060111155561).

Almost surely, 2^{2120222311121} is an apocalyptic number.

It is an amenable number.

2120222311121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120222311121 is an equidigital number, since it uses as much as digits as its factorization.

2120222311121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2120222311121 its reverse (1211132220212), we get a palindrome (3331354531333).

Subtracting from 2120222311121 its reverse (1211132220212), we obtain a palindrome (909090090909).

The spelling of 2120222311121 in words is "two trillion, one hundred twenty billion, two hundred twenty-two million, three hundred eleven thousand, one hundred twenty-one".