22000212001 has 4 divisors (see below), whose sum is σ = 22003929792. Its totient is φ = 21996494212.

The previous prime is 22000211983. The next prime is 22000212037. The reversal of 22000212001 is 10021200022.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10021200022 = 2 ⋅5010600011.

It is a cyclic number.

It is not a de Polignac number, because 22000212001 - 2¹³ = 22000203809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22000212061) 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, 1850005 + ... + 1861858.

It is an arithmetic number, because the mean of its divisors is an integer number (5500982448).

Almost surely, 2^22000212001 is an apocalyptic number.

It is an amenable number.

22000212001 is a deficient number, since it is larger than the sum of its proper divisors (3717791).

22000212001 is an equidigital number, since it uses as much as digits as its factorization.

22000212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3717790.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 22000212001 its reverse (10021200022), we get a palindrome (32021412023).

It can be divided in two parts, 2200021 and 2001, that added together give a palindrome (2202022).

The spelling of 22000212001 in words is "twenty-two billion, two hundred twelve thousand, one".