22001021210112 has 160 divisors (see below), whose sum is σ = 67043487227904. Its totient is φ = 6280541184000.

The previous prime is 22001021210023. The next prime is 22001021210237. The reversal of 22001021210112 is 21101212010022.

It is a super-3 number, since 3×22001021210112³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22001021210091 and 22001021210100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11486662 + ... + 13264442.

Almost surely, 2^{22001021210112} 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 22001021210112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33521743613952).

22001021210112 is an abundant number, since it is smaller than the sum of its proper divisors (45042466017792).

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

22001021210112 is a wasteful number, since it uses less digits than its factorization.

22001021210112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778960 (or 1778944 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22001021210112 its reverse (21101212010022), we get a palindrome (43102233220134).

The spelling of 22001021210112 in words is "twenty-two trillion, one billion, twenty-one million, two hundred ten thousand, one hundred twelve".