122004202681 has 3 divisors (see below), whose sum is σ = 122004551973. Its totient is φ = 122003853390.

The previous prime is 122004202679. The next prime is 122004202687. The reversal of 122004202681 is 186202400221.

The square root of 122004202681 is 349291.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 122004202681 - 2¹ = 122004202679 is a prime.

It is a super-2 number, since 2×122004202681² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122004202687) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 174646 + ... + 523936.

It is an arithmetic number, because the mean of its divisors is an integer number (40668183991).

Almost surely, 2^122004202681 is an apocalyptic number.

122004202681 is the 349291-st square number.

122004202681 is the 174646-th centered octagonal number.

It is an amenable number.

122004202681 is a deficient number, since it is larger than the sum of its proper divisors (349292).

122004202681 is an frugal number, since it uses more digits than its factorization.

122004202681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698582 (or 349291 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The spelling of 122004202681 in words is "one hundred twenty-two billion, four million, two hundred two thousand, six hundred eighty-one".