22002020001 has 24 divisors (see below), whose sum is σ = 34239930816. Its totient is φ = 13533942240.

The previous prime is 22002019999. The next prime is 22002020017. The reversal of 22002020001 is 10002020022.

It is not a de Polignac number, because 22002020001 - 2¹ = 22002019999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (22002020021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 244686 + ... + 322296.

It is an arithmetic number, because the mean of its divisors is an integer number (1426663784).

Almost surely, 2^22002020001 is an apocalyptic number.

It is an amenable number.

22002020001 is a deficient number, since it is larger than the sum of its proper divisors (12237910815).

22002020001 is a wasteful number, since it uses less digits than its factorization.

22002020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80053 (or 80050 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 22002020001 its reverse (10002020022), we get a palindrome (32004040023).

The spelling of 22002020001 in words is "twenty-two billion, two million, twenty thousand, one".