22001222019 has 48 divisors (see below), whose sum is σ = 34694231040. Its totient is φ = 12363200640.

The previous prime is 22001222003. The next prime is 22001222039. The reversal of 22001222019 is 91022210022.

It is a happy number.

It is not a de Polignac number, because 22001222019 - 2⁴ = 22001222003 is a prime.

It is a super-2 number, since 2×22001222019² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 22001221986 and 22001222004.

It is not an unprimeable number, because it can be changed into a prime (22001222039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3849574 + ... + 3855284.

It is an arithmetic number, because the mean of its divisors is an integer number (722796480).

Almost surely, 2^22001222019 is an apocalyptic number.

22001222019 is a deficient number, since it is larger than the sum of its proper divisors (12693009021).

22001222019 is a wasteful number, since it uses less digits than its factorization.

22001222019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6160 (or 6153 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The spelling of 22001222019 in words is "twenty-two billion, one million, two hundred twenty-two thousand, nineteen".