122002221977 has 2 divisors, whose sum is σ = 122002221978. Its totient is φ = 122002221976.

The previous prime is 122002221973. The next prime is 122002222007. The reversal of 122002221977 is 779122200221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121895946496 + 106275481 = 349136^2 + 10309^2 .

It is a cyclic number.

It is not a de Polignac number, because 122002221977 - 2² = 122002221973 is a prime.

It is not a weakly prime, because it can be changed into another prime (122002221973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61001110988 + 61001110989.

It is an arithmetic number, because the mean of its divisors is an integer number (61001110989).

Almost surely, 2^122002221977 is an apocalyptic number.

It is an amenable number.

122002221977 is a deficient number, since it is larger than the sum of its proper divisors (1).

122002221977 is an equidigital number, since it uses as much as digits as its factorization.

122002221977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 35.

The spelling of 122002221977 in words is "one hundred twenty-two billion, two million, two hundred twenty-one thousand, nine hundred seventy-seven".