1121052197 has 2 divisors, whose sum is σ = 1121052198. Its totient is φ = 1121052196.

The previous prime is 1121052187. The next prime is 1121052203. The reversal of 1121052197 is 7912501211.

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., 919241761 + 201810436 = 30319^2 + 14206^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121052197 - 2⁴ = 1121052181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121052137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560526098 + 560526099.

It is an arithmetic number, because the mean of its divisors is an integer number (560526099).

Almost surely, 2^1121052197 is an apocalyptic number.

It is an amenable number.

1121052197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121052197 is an equidigital number, since it uses as much as digits as its factorization.

1121052197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 29.

The square root of 1121052197 is about 33482.1175704285. The cubic root of 1121052197 is about 1038.8239285062.

The spelling of 1121052197 in words is "one billion, one hundred twenty-one million, fifty-two thousand, one hundred ninety-seven".