22010022020021 has 16 divisors (see below), whose sum is σ = 25163516283648. Its totient is φ = 18858830313600.

The previous prime is 22010022019879. The next prime is 22010022020023. The reversal of 22010022020021 is 12002022001022.

It is a cyclic number.

It is not a de Polignac number, because 22010022020021 - 2⁴² = 17611975508917 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22010022019978 and 22010022020005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22010022020023) 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, 250545521 + ... + 250633353.

It is an arithmetic number, because the mean of its divisors is an integer number (1572719767728).

Almost surely, 2^{22010022020021} is an apocalyptic number.

It is an amenable number.

22010022020021 is a deficient number, since it is larger than the sum of its proper divisors (3153494263627).

22010022020021 is an equidigital number, since it uses as much as digits as its factorization.

22010022020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100532.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22010022020021 its reverse (12002022001022), we get a palindrome (34012044021043).

The spelling of 22010022020021 in words is "twenty-two trillion, ten billion, twenty-two million, twenty thousand, twenty-one".