20221310032 has 80 divisors (see below), whose sum is σ = 49982372352. Its totient is φ = 7695192960.

The previous prime is 20221310027. The next prime is 20221310099. The reversal of 20221310032 is 23001312202.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 20221309988 and 20221310015.

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, 137878 + ... + 243829.

Almost surely, 2^20221310032 is an apocalyptic number.

20221310032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20221310032 is an abundant number, since it is smaller than the sum of its proper divisors (29761062320).

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

20221310032 is a wasteful number, since it uses less digits than its factorization.

20221310032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381776 (or 381770 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20221310032 its reverse (23001312202), we get a palindrome (43222622234).

The spelling of 20221310032 in words is "twenty billion, two hundred twenty-one million, three hundred ten thousand, thirty-two".