2231551322 has 32 divisors (see below), whose sum is σ = 4494317184. Its totient is φ = 802555200.

The previous prime is 2231551319. The next prime is 2231551327.

It is a happy number.

2231551322 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×2231551322³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 2231551291 and 2231551300.

It is not an unprimeable number, because it can be changed into a prime (2231551327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555329 + ... + 559332.

It is an arithmetic number, because the mean of its divisors is an integer number (140447412).

Almost surely, 2^2231551322 is an apocalyptic number.

2231551322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2231551322 is an abundant number, since it is smaller than the sum of its proper divisors (2262765862).

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

2231551322 is a wasteful number, since it uses less digits than its factorization.

2231551322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114694.

The product of its digits is 3600, while the sum is 26.

The square root of 2231551322 is about 47239.2984918278. The cubic root of 2231551322 is about 1306.7794404812.

It can be divided in two parts, 22315 and 51322, that added together give a palindrome (73637).

The spelling of 2231551322 in words is "two billion, two hundred thirty-one million, five hundred fifty-one thousand, three hundred twenty-two".