2212156553 has 2 divisors, whose sum is σ = 2212156554. Its totient is φ = 2212156552.

The previous prime is 2212156519. The next prime is 2212156571. The reversal of 2212156553 is 3556512122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2152681609 + 59474944 = 46397^2 + 7712^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212156553 - 2¹² = 2212152457 is a prime.

It is a super-2 number, since 2×2212156553² = 9787273229961683618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2212155553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106078276 + 1106078277.

It is an arithmetic number, because the mean of its divisors is an integer number (1106078277).

Almost surely, 2^2212156553 is an apocalyptic number.

It is an amenable number.

2212156553 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212156553 is an equidigital number, since it uses as much as digits as its factorization.

2212156553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 32.

The square root of 2212156553 is about 47033.5683634572. The cubic root of 2212156553 is about 1302.9826099045.

Adding to 2212156553 its reverse (3556512122), we get a palindrome (5768668675).

The spelling of 2212156553 in words is "two billion, two hundred twelve million, one hundred fifty-six thousand, five hundred fifty-three".