22000101020021 has 16 divisors (see below), whose sum is σ = 23305160229120. Its totient is φ = 20696259006720.

The previous prime is 22000101020017. The next prime is 22000101020069. The reversal of 22000101020021 is 12002010100022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22000101020021 - 2² = 22000101020017 is a prime.

It is a super-2 number, since 2×22000101020021² (a number of 27 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 = 22000101019984 and 22000101020011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000101520021) 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, 392557520 + ... + 392613558.

It is an arithmetic number, because the mean of its divisors is an integer number (1456572514320).

Almost surely, 2^{22000101020021} is an apocalyptic number.

It is an amenable number.

22000101020021 is a deficient number, since it is larger than the sum of its proper divisors (1305059209099).

22000101020021 is a wasteful number, since it uses less digits than its factorization.

22000101020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66484.

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

Adding to 22000101020021 its reverse (12002010100022), we get a palindrome (34002111120043).

The spelling of 22000101020021 in words is "twenty-two trillion, one hundred one million, twenty thousand, twenty-one".