22002102021 has 8 divisors (see below), whose sum is σ = 29337060640. Its totient is φ = 14667605712.

The previous prime is 22002102019. The next prime is 22002102047. The reversal of 22002102021 is 12020120022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22002102021 - 2¹ = 22002102019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22002101988 and 22002102006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002102071) 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, 17295 + ... + 210483.

It is an arithmetic number, because the mean of its divisors is an integer number (3667132580).

Almost surely, 2^22002102021 is an apocalyptic number.

It is an amenable number.

22002102021 is a deficient number, since it is larger than the sum of its proper divisors (7334958619).

22002102021 is a wasteful number, since it uses less digits than its factorization.

22002102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231155.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22002102021 its reverse (12020120022), we get a palindrome (34022222043).

The spelling of 22002102021 in words is "twenty-two billion, two million, one hundred two thousand, twenty-one".