2120222120201 has 4 divisors (see below), whose sum is σ = 2156158088400. Its totient is φ = 2084286152004.

The previous prime is 2120222120173. The next prime is 2120222120207. The reversal of 2120222120201 is 1020212220212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2120222120201 - 2²² = 2120217925897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2120222120201.

It is not an unprimeable number, because it can be changed into a prime (2120222120207) 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, 17967984011 + ... + 17967984128.

It is an arithmetic number, because the mean of its divisors is an integer number (539039522100).

Almost surely, 2^{2120222120201} is an apocalyptic number.

It is an amenable number.

2120222120201 is a deficient number, since it is larger than the sum of its proper divisors (35935968199).

2120222120201 is an equidigital number, since it uses as much as digits as its factorization.

2120222120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35935968198.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2120222120201 its reverse (1020212220212), we get a palindrome (3140434340413).

The spelling of 2120222120201 in words is "two trillion, one hundred twenty billion, two hundred twenty-two million, one hundred twenty thousand, two hundred one".