22021111220101 has 16 divisors (see below), whose sum is σ = 25781280795648. Its totient is φ = 18414532483200.

The previous prime is 22021111220089. The next prime is 22021111220117. The reversal of 22021111220101 is 10102211112022.

It is a de Polignac number, because none of the positive numbers 2^k-22021111220101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021111220191) 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, 15836191 + ... + 17170531.

It is an arithmetic number, because the mean of its divisors is an integer number (1611330049728).

Almost surely, 2^{22021111220101} is an apocalyptic number.

It is an amenable number.

22021111220101 is a deficient number, since it is larger than the sum of its proper divisors (3760169575547).

22021111220101 is a wasteful number, since it uses less digits than its factorization.

22021111220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391892.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22021111220101 its reverse (10102211112022), we get a palindrome (32123322332123).

The spelling of 22021111220101 in words is "twenty-two trillion, twenty-one billion, one hundred eleven million, two hundred twenty thousand, one hundred one".