1422100000021 has 4 divisors (see below), whose sum is σ = 1432955725344. Its totient is φ = 1411244274700.

The previous prime is 1422100000007. The next prime is 1422100000049. The reversal of 1422100000021 is 1200000012241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1422100000021 - 2⁷ = 1422099999893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1422099999947 and 1422100000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422100000001) 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, 5427862465 + ... + 5427862726.

It is an arithmetic number, because the mean of its divisors is an integer number (358238931336).

Almost surely, 2^{1422100000021} is an apocalyptic number.

It is an amenable number.

1422100000021 is a deficient number, since it is larger than the sum of its proper divisors (10855725323).

1422100000021 is a wasteful number, since it uses less digits than its factorization.

1422100000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10855725322.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1422100000021 its reverse (1200000012241), we get a palindrome (2622100012262).

The spelling of 1422100000021 in words is "one trillion, four hundred twenty-two billion, one hundred million, twenty-one", and thus it is an aban number.