22202021101 has 4 divisors (see below), whose sum is σ = 23909868892. Its totient is φ = 20494173312.

The previous prime is 22202021089. The next prime is 22202021111. The reversal of 22202021101 is 10112020222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10112020222 = 2 ⋅5056010111.

It can be written as a sum of positive squares in 2 ways, for example, as 12381012900 + 9821008201 = 111270^2 + 99101^2 .

It is a cyclic number.

It is not a de Polignac number, because 22202021101 - 2²⁹ = 21665150189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 1707847777 = 22202021101 / (2 + 2 + 2 + 0 + 2 + 0 + 2 + 1 + 1 + 0 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202021111) 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, 853923876 + ... + 853923901.

It is an arithmetic number, because the mean of its divisors is an integer number (5977467223).

Almost surely, 2^22202021101 is an apocalyptic number.

It is an amenable number.

22202021101 is a deficient number, since it is larger than the sum of its proper divisors (1707847791).

22202021101 is a wasteful number, since it uses less digits than its factorization.

22202021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707847790.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22202021101 its reverse (10112020222), we get a palindrome (32314041323).

The spelling of 22202021101 in words is "twenty-two billion, two hundred two million, twenty-one thousand, one hundred one".