421051773122 has 90 divisors (see below), whose sum is σ = 706075439337. Its totient is φ = 188304242400.

The previous prime is 421051773101. The next prime is 421051773151. The reversal of 421051773122 is 221377150124.

It can be written as a sum of positive squares in 2 ways, for example, as 300697592881 + 120354180241 = 548359^2 + 346921^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=458831.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 10269555422 + ... + 10269555462.

Almost surely, 2^421051773122 is an apocalyptic number.

421051773122 is a deficient number, since it is larger than the sum of its proper divisors (285023666215).

421051773122 is an frugal number, since it uses more digits than its factorization.

421051773122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The spelling of 421051773122 in words is "four hundred twenty-one billion, fifty-one million, seven hundred seventy-three thousand, one hundred twenty-two".