2220121123331 has 16 divisors (see below), whose sum is σ = 2296675473120. Its totient is φ = 2144671764480.

The previous prime is 2220121123309. The next prime is 2220121123391. The reversal of 2220121123331 is 1333211210222.

It is a cyclic number.

It is not a de Polignac number, because 2220121123331 - 2⁶ = 2220121123267 is a prime.

It is a super-2 number, since 2×2220121123331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220121123297 and 2220121123306.

It is not an unprimeable number, because it can be changed into a prime (2220121123391) 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, 4437236 + ... + 4912158.

It is an arithmetic number, because the mean of its divisors is an integer number (143542217070).

Almost surely, 2^{2220121123331} is an apocalyptic number.

2220121123331 is a deficient number, since it is larger than the sum of its proper divisors (76554349789).

2220121123331 is a wasteful number, since it uses less digits than its factorization.

2220121123331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476086.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2220121123331 its reverse (1333211210222), we get a palindrome (3553332333553).

The spelling of 2220121123331 in words is "two trillion, two hundred twenty billion, one hundred twenty-one million, one hundred twenty-three thousand, three hundred thirty-one".