1021422002412 has 108 divisors (see below), whose sum is σ = 2864750941080. Its totient is φ = 282420673920.

The previous prime is 1021422002399. The next prime is 1021422002429. The reversal of 1021422002412 is 2142002241201.

It is a super-2 number, since 2×1021422002412² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 338737 + ... + 1468872.

Almost surely, 2^{1021422002412} is an apocalyptic number.

1021422002412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021422002412 is an abundant number, since it is smaller than the sum of its proper divisors (1843328938668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021422002412 is a wasteful number, since it uses less digits than its factorization.

1021422002412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807692 (or 1807652 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 1021422002412 its reverse (2142002241201), we get a palindrome (3163424243613).

The spelling of 1021422002412 in words is "one trillion, twenty-one billion, four hundred twenty-two million, two thousand, four hundred twelve".