1200122220151 has 2 divisors, whose sum is σ = 1200122220152. Its totient is φ = 1200122220150.

The previous prime is 1200122220083. The next prime is 1200122220169. The reversal of 1200122220151 is 1510222210021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200122220151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200122220251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600061110075 + 600061110076.

It is an arithmetic number, because the mean of its divisors is an integer number (600061110076).

Almost surely, 2^{1200122220151} is an apocalyptic number.

1200122220151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200122220151 is an equidigital number, since it uses as much as digits as its factorization.

1200122220151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 1200122220151 its reverse (1510222210021), we get a palindrome (2710344430172).

The spelling of 1200122220151 in words is "one trillion, two hundred billion, one hundred twenty-two million, two hundred twenty thousand, one hundred fifty-one".