22001212108 has 12 divisors (see below), whose sum is σ = 40528548760. Its totient is φ = 10421626752.

The previous prime is 22001212081. The next prime is 22001212109. The reversal of 22001212108 is 80121210022.

It is a super-3 number, since 3×22001212108³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (22001212109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144744741 + ... + 144744892.

Almost surely, 2^22001212108 is an apocalyptic number.

It is an amenable number.

22001212108 is a deficient number, since it is larger than the sum of its proper divisors (18527336652).

22001212108 is a wasteful number, since it uses less digits than its factorization.

22001212108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289489656 (or 289489654 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The spelling of 22001212108 in words is "twenty-two billion, one million, two hundred twelve thousand, one hundred eight".