421251112 has 8 divisors (see below), whose sum is σ = 789845850. Its totient is φ = 210625552.

The previous prime is 421251107. The next prime is 421251113. The reversal of 421251112 is 211152124.

It can be written as a sum of positive squares in only one way, i.e., 269813476 + 151437636 = 16426^2 + 12306^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×421251112² = 354904998722473088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 421251112.

It is not an unprimeable number, because it can be changed into a prime (421251113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26328187 + ... + 26328202.

Almost surely, 2^421251112 is an apocalyptic number.

It is an amenable number.

421251112 is a deficient number, since it is larger than the sum of its proper divisors (368594738).

421251112 is a wasteful number, since it uses less digits than its factorization.

421251112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52656395 (or 52656391 counting only the distinct ones).

The product of its digits is 160, while the sum is 19.

The square root of 421251112 is about 20524.4028414958. The cubic root of 421251112 is about 749.6301061940.

The spelling of 421251112 in words is "four hundred twenty-one million, two hundred fifty-one thousand, one hundred twelve".