220121101213 has 16 divisors (see below), whose sum is σ = 238478688000. Its totient is φ = 201969123840.

The previous prime is 220121101183. The next prime is 220121101237. The reversal of 220121101213 is 312101121022.

It is a cyclic number.

It is not a de Polignac number, because 220121101213 - 2⁵ = 220121101181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220121101273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2625933 + ... + 2708461.

It is an arithmetic number, because the mean of its divisors is an integer number (14904918000).

Almost surely, 2^220121101213 is an apocalyptic number.

It is an amenable number.

220121101213 is a deficient number, since it is larger than the sum of its proper divisors (18357586787).

220121101213 is a wasteful number, since it uses less digits than its factorization.

220121101213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83772.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 220121101213 its reverse (312101121022), we get a palindrome (532222222235).

The spelling of 220121101213 in words is "two hundred twenty billion, one hundred twenty-one million, one hundred one thousand, two hundred thirteen".