2120012212201 has 4 divisors (see below), whose sum is σ = 2283090074692. Its totient is φ = 1956934349712.

The previous prime is 2120012212181. The next prime is 2120012212229. The reversal of 2120012212201 is 1022122100212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 218649760000 + 1901362452201 = 467600^2 + 1378899^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120012212201 - 2¹⁷ = 2120012081129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120012212231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81538931226 + ... + 81538931251.

It is an arithmetic number, because the mean of its divisors is an integer number (570772518673).

Almost surely, 2^{2120012212201} is an apocalyptic number.

It is an amenable number.

2120012212201 is a deficient number, since it is larger than the sum of its proper divisors (163077862491).

2120012212201 is a wasteful number, since it uses less digits than its factorization.

2120012212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163077862490.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2120012212201 its reverse (1022122100212), we get a palindrome (3142134312413).

The spelling of 2120012212201 in words is "two trillion, one hundred twenty billion, twelve million, two hundred twelve thousand, two hundred one".