22121002230132 has 96 divisors (see below), whose sum is σ = 56371855599360. Its totient is φ = 6710257935360.

The previous prime is 22121002230101. The next prime is 22121002230137. The reversal of 22121002230132 is 23103220012122.

It is a junction number, because it is equal to n+sod(n) for n = 22121002230099 and 22121002230108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121002230137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 300222448 + ... + 300296120.

It is an arithmetic number, because the mean of its divisors is an integer number (587206829160).

Almost surely, 2^{22121002230132} 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 22121002230132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28185927799680).

22121002230132 is an abundant number, since it is smaller than the sum of its proper divisors (34250853369228).

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

22121002230132 is a wasteful number, since it uses less digits than its factorization.

22121002230132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100873 (or 100871 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 22121002230132 its reverse (23103220012122), we get a palindrome (45224222242254).

The spelling of 22121002230132 in words is "twenty-two trillion, one hundred twenty-one billion, two million, two hundred thirty thousand, one hundred thirty-two".