22211400401 has 4 divisors (see below), whose sum is σ = 22217217204. Its totient is φ = 22205583600.

The previous prime is 22211400391. The next prime is 22211400427. The reversal of 22211400401 is 10400411222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20377848001 + 1833552400 = 142751^2 + 42820^2 .

It is a cyclic number.

It is not a de Polignac number, because 22211400401 - 2²⁶ = 22144291537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22211400401.

It is not an unprimeable number, because it can be changed into a prime (22211400481) 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, 2902670 + ... + 2910311.

It is an arithmetic number, because the mean of its divisors is an integer number (5554304301).

Almost surely, 2^22211400401 is an apocalyptic number.

It is an amenable number.

22211400401 is a deficient number, since it is larger than the sum of its proper divisors (5816803).

22211400401 is an equidigital number, since it uses as much as digits as its factorization.

22211400401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5816802.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22211400401 its reverse (10400411222), we get a palindrome (32611811623).

The spelling of 22211400401 in words is "twenty-two billion, two hundred eleven million, four hundred thousand, four hundred one".