122261556 has 48 divisors (see below), whose sum is σ = 293230784. Its totient is φ = 39626496.

The previous prime is 122261521. The next prime is 122261591. The reversal of 122261556 is 655162221.

It is an interprime number because it is at equal distance from previous prime (122261521) and next prime (122261591).

It is a super-2 number, since 2×122261556² = 29895776151082272, which contains 22 as substring.

It is a zygodrome in base 5.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161130 + ... + 161886.

Almost surely, 2^122261556 is an apocalyptic number.

It is an amenable number.

122261556 is an abundant number, since it is smaller than the sum of its proper divisors (170969228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122261556 is a wasteful number, since it uses less digits than its factorization.

122261556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120 (or 1118 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 122261556 is about 11057.1947617829. The cubic root of 122261556 is about 496.3217486203.

The spelling of 122261556 in words is "one hundred twenty-two million, two hundred sixty-one thousand, five hundred fifty-six".