22212131032 has 96 divisors (see below), whose sum is σ = 54253497600. Its totient is φ = 8324664192.

The previous prime is 22212131017. The next prime is 22212131047. The reversal of 22212131032 is 23013121222.

It is an interprime number because it is at equal distance from previous prime (22212131017) and next prime (22212131047).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118053 + ... + 241579.

It is an arithmetic number, because the mean of its divisors is an integer number (565140600).

Almost surely, 2^22212131032 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 22212131032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27126748800).

22212131032 is an abundant number, since it is smaller than the sum of its proper divisors (32041366568).

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

22212131032 is a wasteful number, since it uses less digits than its factorization.

22212131032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123585 (or 123568 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22212131032 its reverse (23013121222), we get a palindrome (45225252254).

The spelling of 22212131032 in words is "twenty-two billion, two hundred twelve million, one hundred thirty-one thousand, thirty-two".