22201101021 has 16 divisors (see below), whose sum is σ = 32461590528. Its totient is φ = 13384762800.

The previous prime is 22201101017. The next prime is 22201101031. The reversal of 22201101021 is 12010110222.

It is not a de Polignac number, because 22201101021 - 2² = 22201101017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22201100988 and 22201101006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201101011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1754851 + ... + 1767456.

It is an arithmetic number, because the mean of its divisors is an integer number (2028849408).

Almost surely, 2^22201101021 is an apocalyptic number.

It is an amenable number.

22201101021 is a deficient number, since it is larger than the sum of its proper divisors (10260489507).

22201101021 is a wasteful number, since it uses less digits than its factorization.

22201101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3522512.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22201101021 its reverse (12010110222), we get a palindrome (34211211243).

The spelling of 22201101021 in words is "twenty-two billion, two hundred one million, one hundred one thousand, twenty-one".