122101210121977 has 2 divisors, whose sum is σ = 122101210121978. Its totient is φ = 122101210121976.

The previous prime is 122101210121951. The next prime is 122101210122007. The reversal of 122101210121977 is 779121012101221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112666846007296 + 9434364114681 = 10614464^2 + 3071541^2 .

It is a cyclic number.

It is not a de Polignac number, because 122101210121977 - 2²³ = 122101201733369 is a prime.

It is not a weakly prime, because it can be changed into another prime (122101210161977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61050605060988 + 61050605060989.

It is an arithmetic number, because the mean of its divisors is an integer number (61050605060989).

Almost surely, 2^{122101210121977} is an apocalyptic number.

It is an amenable number.

122101210121977 is a deficient number, since it is larger than the sum of its proper divisors (1).

122101210121977 is an equidigital number, since it uses as much as digits as its factorization.

122101210121977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 37.

The spelling of 122101210121977 in words is "one hundred twenty-two trillion, one hundred one billion, two hundred ten million, one hundred twenty-one thousand, nine hundred seventy-seven".