22011102021 has 8 divisors (see below), whose sum is σ = 29386908064. Its totient is φ = 14654682000.

The previous prime is 22011101963. The next prime is 22011102059. The reversal of 22011102021 is 12020111022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22011102021 - 2²³ = 22002713413 is a prime.

It is a super-2 number, since 2×22011102021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22011101988 and 22011102006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011102221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4843855 + ... + 4848396.

It is an arithmetic number, because the mean of its divisors is an integer number (3673363508).

Almost surely, 2^22011102021 is an apocalyptic number.

It is an amenable number.

22011102021 is a deficient number, since it is larger than the sum of its proper divisors (7375806043).

22011102021 is an equidigital number, since it uses as much as digits as its factorization.

22011102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9693011.

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

Adding to 22011102021 its reverse (12020111022), we get a palindrome (34031213043).

Subtracting from 22011102021 its reverse (12020111022), we obtain a palindrome (9990990999).

The spelling of 22011102021 in words is "twenty-two billion, eleven million, one hundred two thousand, twenty-one".