122356690 has 16 divisors (see below), whose sum is σ = 227347200. Its totient is φ = 47363760.

The previous prime is 122356657. The next prime is 122356693. The reversal of 122356690 is 96653221.

It is a super-2 number, since 2×122356690² = 29942319175512200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122356693) 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 7 ways as a sum of consecutive naturals, for example, 197040 + ... + 197659.

It is an arithmetic number, because the mean of its divisors is an integer number (14209200).

Almost surely, 2^122356690 is an apocalyptic number.

122356690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122356690 is a deficient number, since it is larger than the sum of its proper divisors (104990510).

122356690 is a wasteful number, since it uses less digits than its factorization.

122356690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394737.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 122356690 is about 11061.4958301308. The cubic root of 122356690 is about 496.4504476522.

The spelling of 122356690 in words is "one hundred twenty-two million, three hundred fifty-six thousand, six hundred ninety".