220112121432 has 32 divisors (see below), whose sum is σ = 628891776000. Its totient is φ = 62889177504.

The previous prime is 220112121431. The next prime is 220112121499. The reversal of 220112121432 is 234121211022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 220112121399 and 220112121408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220112121431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655095432 + ... + 655095767.

It is an arithmetic number, because the mean of its divisors is an integer number (19652868000).

Almost surely, 2^220112121432 is an apocalyptic number.

It is an amenable number.

220112121432 is an abundant number, since it is smaller than the sum of its proper divisors (408779654568).

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

220112121432 is a wasteful number, since it uses less digits than its factorization.

220112121432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310191215 (or 1310191211 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 220112121432 its reverse (234121211022), we get a palindrome (454233332454).

The spelling of 220112121432 in words is "two hundred twenty billion, one hundred twelve million, one hundred twenty-one thousand, four hundred thirty-two".