2120221110131 has 4 divisors (see below), whose sum is σ = 2120232819600. Its totient is φ = 2120209400664.

The previous prime is 2120221110083. The next prime is 2120221110143. The reversal of 2120221110131 is 1310111220212.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120221110131 is a prime.

It is a super-2 number, since 2×2120221110131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120221170131) 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, 5578796 + ... + 5946713.

It is an arithmetic number, because the mean of its divisors is an integer number (530058204900).

Almost surely, 2^{2120221110131} is an apocalyptic number.

2120221110131 is a deficient number, since it is larger than the sum of its proper divisors (11709469).

2120221110131 is a wasteful number, since it uses less digits than its factorization.

2120221110131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11709468.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 2120221110131 its reverse (1310111220212), we get a palindrome (3430332330343).

The spelling of 2120221110131 in words is "two trillion, one hundred twenty billion, two hundred twenty-one million, one hundred ten thousand, one hundred thirty-one".