22121203032 has 40 divisors (see below), whose sum is σ = 61959852900. Its totient is φ = 7373734128.

The previous prime is 22121203009. The next prime is 22121203037. The reversal of 22121203032 is 23030212122.

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

It is a junction number, because it is equal to n+sod(n) for n = 22121202996 and 22121203014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121203037) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 17068182 + ... + 17069477.

Almost surely, 2^22121203032 is an apocalyptic number.

It is an amenable number.

22121203032 is an abundant number, since it is smaller than the sum of its proper divisors (39838649868).

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

22121203032 is a wasteful number, since it uses less digits than its factorization.

22121203032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34137677 (or 34137664 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22121203032 its reverse (23030212122), we get a palindrome (45151415154).

The spelling of 22121203032 in words is "twenty-two billion, one hundred twenty-one million, two hundred three thousand, thirty-two".