2220120121101 has 32 divisors (see below), whose sum is σ = 3101453418240. Its totient is φ = 1409960116224.

The previous prime is 2220120121061. The next prime is 2220120121169. The reversal of 2220120121101 is 1011210210222.

It is not a de Polignac number, because 2220120121101 - 2¹⁹ = 2220119596813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220120121501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154500445 + ... + 154514813.

It is an arithmetic number, because the mean of its divisors is an integer number (96920419320).

Almost surely, 2^{2220120121101} is an apocalyptic number.

It is an amenable number.

2220120121101 is a deficient number, since it is larger than the sum of its proper divisors (881333297139).

2220120121101 is a wasteful number, since it uses less digits than its factorization.

2220120121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23365.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2220120121101 its reverse (1011210210222), we get a palindrome (3231330331323).

The spelling of 2220120121101 in words is "two trillion, two hundred twenty billion, one hundred twenty million, one hundred twenty-one thousand, one hundred one".