22012101021 has 16 divisors (see below), whose sum is σ = 29570184000. Its totient is φ = 14564444928.

The previous prime is 22012101019. The next prime is 22012101031. The reversal of 22012101021 is 12010121022.

It is not a de Polignac number, because 22012101021 - 2¹ = 22012101019 is a prime.

It is a super-3 number, since 3×22012101021³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22012100988 and 22012101006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012101031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1681915 + ... + 1694951.

It is an arithmetic number, because the mean of its divisors is an integer number (1848136500).

Almost surely, 2^22012101021 is an apocalyptic number.

It is an amenable number.

22012101021 is a deficient number, since it is larger than the sum of its proper divisors (7558082979).

22012101021 is a wasteful number, since it uses less digits than its factorization.

22012101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17228.

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

Adding to 22012101021 its reverse (12010121022), we get a palindrome (34022222043).

The spelling of 22012101021 in words is "twenty-two billion, twelve million, one hundred one thousand, twenty-one".