2212111221232 has 80 divisors (see below), whose sum is σ = 4703205225600. Its totient is φ = 999585734400.

The previous prime is 2212111221169. The next prime is 2212111221253. The reversal of 2212111221232 is 2321221112122.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 20276943 + ... + 20385745.

It is an arithmetic number, because the mean of its divisors is an integer number (58790065320).

Almost surely, 2^{2212111221232} is an apocalyptic number.

2212111221232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2212111221232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2351602612800).

2212111221232 is an abundant number, since it is smaller than the sum of its proper divisors (2491094004368).

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

2212111221232 is a wasteful number, since it uses less digits than its factorization.

2212111221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109502 (or 109496 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

Adding to 2212111221232 its reverse (2321221112122), we get a palindrome (4533332333354).

The spelling of 2212111221232 in words is "two trillion, two hundred twelve billion, one hundred eleven million, two hundred twenty-one thousand, two hundred thirty-two".