1121222051 has 2 divisors, whose sum is σ = 1121222052. Its totient is φ = 1121222050.

The previous prime is 1121221999. The next prime is 1121222059. The reversal of 1121222051 is 1502221211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121222051 - 2⁶ = 1121221987 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121222059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560611025 + 560611026.

It is an arithmetic number, because the mean of its divisors is an integer number (560611026).

Almost surely, 2^1121222051 is an apocalyptic number.

1121222051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121222051 is an equidigital number, since it uses as much as digits as its factorization.

1121222051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1121222051 is about 33484.6539626737. The cubic root of 1121222051 is about 1038.8763909724.

Adding to 1121222051 its reverse (1502221211), we get a palindrome (2623443262).

The spelling of 1121222051 in words is "one billion, one hundred twenty-one million, two hundred twenty-two thousand, fifty-one".