122354250421 has 12 divisors (see below), whose sum is σ = 135423631812. Its totient is φ = 109889872128.

The previous prime is 122354250377. The next prime is 122354250427. The reversal of 122354250421 is 124052453221.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 4420388196 + 117933862225 = 66486^2 + 343415^2 .

It is not a de Polignac number, because 122354250421 - 2³³ = 113764315829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122354250427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3419700 + ... + 3455293.

It is an arithmetic number, because the mean of its divisors is an integer number (11285302651).

Almost surely, 2^122354250421 is an apocalyptic number.

It is an amenable number.

122354250421 is a deficient number, since it is larger than the sum of its proper divisors (13069381391).

122354250421 is an equidigital number, since it uses as much as digits as its factorization.

122354250421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6875080 (or 6875043 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 122354250421 in words is "one hundred twenty-two billion, three hundred fifty-four million, two hundred fifty thousand, four hundred twenty-one".