2210997121 has 2 divisors, whose sum is σ = 2210997122. Its totient is φ = 2210997120.

The previous prime is 2210997109. The next prime is 2210997127. The reversal of 2210997121 is 1217990122.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1750250896 + 460746225 = 41836^2 + 21465^2 .

It is a cyclic number.

It is not a de Polignac number, because 2210997121 - 2¹³ = 2210988929 is a prime.

It is not a weakly prime, because it can be changed into another prime (2210997127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105498560 + 1105498561.

It is an arithmetic number, because the mean of its divisors is an integer number (1105498561).

Almost surely, 2^2210997121 is an apocalyptic number.

It is an amenable number.

2210997121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2210997121 is an equidigital number, since it uses as much as digits as its factorization.

2210997121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 2210997121 is about 47021.2411682210. The cubic root of 2210997121 is about 1302.7549310602.

The spelling of 2210997121 in words is "two billion, two hundred ten million, nine hundred ninety-seven thousand, one hundred twenty-one".