2231551300 has 72 divisors (see below), whose sum is σ = 5357282112. Its totient is φ = 800016000.

The previous prime is 2231551297. The next prime is 2231551307. The reversal of 2231551300 is 31551322.

It is a super-3 number, since 3×2231551300³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (2231551307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63814 + ... + 92386.

It is an arithmetic number, because the mean of its divisors is an integer number (74406696).

Almost surely, 2^2231551300 is an apocalyptic number.

2231551300 is a gapful number since it is divisible by the number (20) 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 2231551300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2678641056).

2231551300 is an abundant number, since it is smaller than the sum of its proper divisors (3125730812).

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

2231551300 is a wasteful number, since it uses less digits than its factorization.

2231551300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28669 (or 28662 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 2231551300 is about 47239.2982589708. The cubic root of 2231551300 is about 1306.7794361869.

Adding to 2231551300 its sum of digits (22), we get a palindrome (2231551322).

The spelling of 2231551300 in words is "two billion, two hundred thirty-one million, five hundred fifty-one thousand, three hundred".