122120986 has 8 divisors (see below), whose sum is σ = 197272404. Its totient is φ = 56363520.

The previous prime is 122120983. The next prime is 122120987. The reversal of 122120986 is 689021221.

It can be written as a sum of positive squares in 2 ways, for example, as 114083761 + 8037225 = 10681^2 + 2835^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×122120986² = 29827070443224392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122120981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2348455 + ... + 2348506.

Almost surely, 2^122120986 is an apocalyptic number.

122120986 is a deficient number, since it is larger than the sum of its proper divisors (75151418).

122120986 is a wasteful number, since it uses less digits than its factorization.

122120986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4696976.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 122120986 is about 11050.8364389308. The cubic root of 122120986 is about 496.1314606669.

The spelling of 122120986 in words is "one hundred twenty-two million, one hundred twenty thousand, nine hundred eighty-six".