421122425506 has 16 divisors (see below), whose sum is σ = 639957225600. Its totient is φ = 207805663728.

The previous prime is 421122425491. The next prime is 421122425509. The reversal of 421122425506 is 605524221124.

It is not an unprimeable number, because it can be changed into a prime (421122425509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212340 + ... + 941983.

It is an arithmetic number, because the mean of its divisors is an integer number (39997326600).

Almost surely, 2^421122425506 is an apocalyptic number.

421122425506 is a deficient number, since it is larger than the sum of its proper divisors (218834800094).

421122425506 is a wasteful number, since it uses less digits than its factorization.

421122425506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156713.

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 421122425506 in words is "four hundred twenty-one billion, one hundred twenty-two million, four hundred twenty-five thousand, five hundred six".