22231212101 has 4 divisors (see below), whose sum is σ = 25407099552. Its totient is φ = 19055324652.

The previous prime is 22231212071. The next prime is 22231212131. The reversal of 22231212101 is 10121213222.

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 an interprime number because it is at equal distance from previous prime (22231212071) and next prime (22231212131).

It is not a de Polignac number, because 22231212101 - 2¹⁴ = 22231195717 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 22231212101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22231212131) 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, 1587943715 + ... + 1587943728.

It is an arithmetic number, because the mean of its divisors is an integer number (6351774888).

Almost surely, 2^22231212101 is an apocalyptic number.

It is an amenable number.

22231212101 is a deficient number, since it is larger than the sum of its proper divisors (3175887451).

22231212101 is an equidigital number, since it uses as much as digits as its factorization.

22231212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3175887450.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 22231212101 its reverse (10121213222), we get a palindrome (32352425323).

It can be divided in two parts, 2223121 and 2101, that added together give a palindrome (2225222).

The spelling of 22231212101 in words is "twenty-two billion, two hundred thirty-one million, two hundred twelve thousand, one hundred one".