122261156 has 12 divisors (see below), whose sum is σ = 215140380. Its totient is φ = 60792480.

The previous prime is 122261149. The next prime is 122261159. The reversal of 122261156 is 651162221.

It can be written as a sum of positive squares in 2 ways, for example, as 5837056 + 116424100 = 2416^2 + 10790^2 .

It is not an unprimeable number, because it can be changed into a prime (122261159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83711 + ... + 85158.

It is an arithmetic number, because the mean of its divisors is an integer number (17928365).

Almost surely, 2^122261156 is an apocalyptic number.

It is an amenable number.

122261156 is a deficient number, since it is larger than the sum of its proper divisors (92879224).

122261156 is a wasteful number, since it uses less digits than its factorization.

122261156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169054 (or 169052 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 122261156 is about 11057.1766739978. The cubic root of 122261156 is about 496.3212073520.

The spelling of 122261156 in words is "one hundred twenty-two million, two hundred sixty-one thousand, one hundred fifty-six".