151222502261 has 2 divisors, whose sum is σ = 151222502262. Its totient is φ = 151222502260.

The previous prime is 151222502243. The next prime is 151222502267. The reversal of 151222502261 is 162205222151.

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., 148759861636 + 2462640625 = 385694^2 + 49625^2 .

It is a cyclic number.

It is not a de Polignac number, because 151222502261 - 2²⁶ = 151155393397 is a prime.

It is a super-2 number, since 2×151222502261² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151222502267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75611251130 + 75611251131.

It is an arithmetic number, because the mean of its divisors is an integer number (75611251131).

Almost surely, 2^151222502261 is an apocalyptic number.

It is an amenable number.

151222502261 is a deficient number, since it is larger than the sum of its proper divisors (1).

151222502261 is an equidigital number, since it uses as much as digits as its factorization.

151222502261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 29.

The spelling of 151222502261 in words is "one hundred fifty-one billion, two hundred twenty-two million, five hundred two thousand, two hundred sixty-one".