22202001221112 has 96 divisors (see below), whose sum is σ = 60619344786000. Its totient is φ = 7340547502080.

The previous prime is 22202001221111. The next prime is 22202001221123. The reversal of 22202001221112 is 21112210020222.

It is a happy number.

It is a super-2 number, since 2×22202001221112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202001221111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18557464 + ... + 19717592.

Almost surely, 2^{22202001221112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22202001221112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30309672393000).

22202001221112 is an abundant number, since it is smaller than the sum of its proper divisors (38417343564888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22202001221112 is a wasteful number, since it uses less digits than its factorization.

22202001221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162301 (or 1162294 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22202001221112 its reverse (21112210020222), we get a palindrome (43314211241334).

The spelling of 22202001221112 in words is "twenty-two trillion, two hundred two billion, one million, two hundred twenty-one thousand, one hundred twelve".