2220553121 has 2 divisors, whose sum is σ = 2220553122. Its totient is φ = 2220553120.

The previous prime is 2220553103. The next prime is 2220553163. The reversal of 2220553121 is 1213550222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1346523025 + 874030096 = 36695^2 + 29564^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220553121 - 2²² = 2216358817 is a prime.

It is not a weakly prime, because it can be changed into another prime (2220553421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110276560 + 1110276561.

It is an arithmetic number, because the mean of its divisors is an integer number (1110276561).

Almost surely, 2^2220553121 is an apocalyptic number.

It is an amenable number.

2220553121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220553121 is an equidigital number, since it uses as much as digits as its factorization.

2220553121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2220553121 is about 47122.7452617099. The cubic root of 2220553121 is about 1304.6290830390.

The spelling of 2220553121 in words is "two billion, two hundred twenty million, five hundred fifty-three thousand, one hundred twenty-one".