20022003232 has 288 divisors, whose sum is σ = 53949321216. Its totient is φ = 7097241600.

The previous prime is 20022003229. The next prime is 20022003259. The reversal of 20022003232 is 23230022002.

It is a super-2 number, since 2×20022003232² (a number of 21 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22074523 + ... + 22075429.

It is an arithmetic number, because the mean of its divisors is an integer number (187324032).

Almost surely, 2^20022003232 is an apocalyptic number.

20022003232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20022003232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26974660608).

20022003232 is an abundant number, since it is smaller than the sum of its proper divisors (33927317984).

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

20022003232 is a wasteful number, since it uses less digits than its factorization.

20022003232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000 (or 975 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 20022003232 its reverse (23230022002), we get a palindrome (43252025234).

The spelling of 20022003232 in words is "twenty billion, twenty-two million, three thousand, two hundred thirty-two".