22010120021 has 8 divisors (see below), whose sum is σ = 22072625280. Its totient is φ = 21947699488.

The previous prime is 22010120017. The next prime is 22010120039. The reversal of 22010120021 is 12002101022.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22010120021 - 2² = 22010120017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22010119984 and 22010120011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22010120071) 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, 518420 + ... + 559266.

It is an arithmetic number, because the mean of its divisors is an integer number (2759078160).

Almost surely, 2^22010120021 is an apocalyptic number.

It is an amenable number.

22010120021 is a deficient number, since it is larger than the sum of its proper divisors (62505259).

22010120021 is an equidigital number, since it uses as much as digits as its factorization.

22010120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42363.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22010120021 its reverse (12002101022), we get a palindrome (34012221043).

The spelling of 22010120021 in words is "twenty-two billion, ten million, one hundred twenty thousand, twenty-one".