2220023213121 has 8 divisors (see below), whose sum is σ = 3382892515264. Its totient is φ = 1268584693200.

The previous prime is 2220023213099. The next prime is 2220023213123. The reversal of 2220023213121 is 1213123200222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2220023213121 - 2¹³ = 2220023204929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 105715391101 = 2220023213121 / (2 + 2 + 2 + 0 + 0 + 2 + 3 + 2 + 1 + 3 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220023213123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52857695530 + ... + 52857695571.

It is an arithmetic number, because the mean of its divisors is an integer number (422861564408).

Almost surely, 2^{2220023213121} is an apocalyptic number.

2220023213121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2220023213121 is a deficient number, since it is larger than the sum of its proper divisors (1162869302143).

2220023213121 is a wasteful number, since it uses less digits than its factorization.

2220023213121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105715391111.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2220023213121 its reverse (1213123200222), we get a palindrome (3433146413343).

The spelling of 2220023213121 in words is "two trillion, two hundred twenty billion, twenty-three million, two hundred thirteen thousand, one hundred twenty-one".