122075052781 has 8 divisors (see below), whose sum is σ = 134997070464. Its totient is φ = 109457082720.

The previous prime is 122075052731. The next prime is 122075052851. The reversal of 122075052781 is 187250570221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 122075052781 - 2⁷ = 122075052653 is a prime.

It is a super-2 number, since 2×122075052781² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122075052731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76011061 + ... + 76012666.

It is an arithmetic number, because the mean of its divisors is an integer number (16874633808).

Almost surely, 2^122075052781 is an apocalyptic number.

122075052781 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122075052781 is a deficient number, since it is larger than the sum of its proper divisors (12922017683).

122075052781 is a wasteful number, since it uses less digits than its factorization.

122075052781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152023811.

The product of its (nonzero) digits is 78400, while the sum is 40.

The spelling of 122075052781 in words is "one hundred twenty-two billion, seventy-five million, fifty-two thousand, seven hundred eighty-one".