122020977 has 16 divisors (see below), whose sum is σ = 178940160. Its totient is φ = 73491072.

The previous prime is 122020973. The next prime is 122020979. The reversal of 122020977 is 779020221.

It is a happy number.

It is not a de Polignac number, because 122020977 - 2² = 122020973 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122020973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31452 + ... + 35117.

It is an arithmetic number, because the mean of its divisors is an integer number (11183760).

Almost surely, 2^122020977 is an apocalyptic number.

It is an amenable number.

122020977 is a deficient number, since it is larger than the sum of its proper divisors (56919183).

122020977 is a wasteful number, since it uses less digits than its factorization.

122020977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66632.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 122020977 is about 11046.3105605446. The cubic root of 122020977 is about 495.9959907433.

The spelling of 122020977 in words is "one hundred twenty-two million, twenty thousand, nine hundred seventy-seven".