22001012101 has 4 divisors (see below), whose sum is σ = 22002130912. Its totient is φ = 21999893292.

The previous prime is 22001012083. The next prime is 22001012203. The reversal of 22001012101 is 10121010022.

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-22001012101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001012701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529371 + ... + 569416.

It is an arithmetic number, because the mean of its divisors is an integer number (5500532728).

Almost surely, 2^22001012101 is an apocalyptic number.

It is an amenable number.

22001012101 is a deficient number, since it is larger than the sum of its proper divisors (1118811).

22001012101 is a wasteful number, since it uses less digits than its factorization.

22001012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118810.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 22001012101 its reverse (10121010022), we get a palindrome (32122022123).

The spelling of 22001012101 in words is "twenty-two billion, one million, twelve thousand, one hundred one".