1001421712 has 20 divisors (see below), whose sum is σ = 1941054336. Its totient is φ = 500504480.

The previous prime is 1001421709. The next prime is 1001421713. The reversal of 1001421712 is 2171241001.

It is a self number, because there is not a number n which added to its sum of digits gives 1001421712.

It is not an unprimeable number, because it can be changed into a prime (1001421713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31833 + ... + 54919.

Almost surely, 2^1001421712 is an apocalyptic number.

It is an amenable number.

1001421712 is a deficient number, since it is larger than the sum of its proper divisors (939632624).

1001421712 is a wasteful number, since it uses less digits than its factorization.

1001421712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25806 (or 25800 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 1001421712 is about 31645.2478580908. The cubic root of 1001421712 is about 1000.4736795922.

Adding to 1001421712 its reverse (2171241001), we get a palindrome (3172662713).

The spelling of 1001421712 in words is "one billion, one million, four hundred twenty-one thousand, seven hundred twelve".