22122220101 has 4 divisors (see below), whose sum is σ = 29496293472. Its totient is φ = 14748146732.

The previous prime is 22122220033. The next prime is 22122220121. The reversal of 22122220101 is 10102222122.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22122220101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122220121) 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, 3687036681 + ... + 3687036686.

It is an arithmetic number, because the mean of its divisors is an integer number (7374073368).

Almost surely, 2^22122220101 is an apocalyptic number.

It is an amenable number.

22122220101 is a deficient number, since it is larger than the sum of its proper divisors (7374073371).

22122220101 is an equidigital number, since it uses as much as digits as its factorization.

22122220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7374073370.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22122220101 its reverse (10102222122), we get a palindrome (32224442223).

The spelling of 22122220101 in words is "twenty-two billion, one hundred twenty-two million, two hundred twenty thousand, one hundred one".