2231221132330 has 8 divisors (see below), whose sum is σ = 4016198038212. Its totient is φ = 892488452928.

The previous prime is 2231221132313. The next prime is 2231221132337. The reversal of 2231221132330 is 332311221322.

It can be written as a sum of positive squares in 2 ways, for example, as 2195674931961 + 35546200369 = 1481781^2 + 188537^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×2231221132330³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231221132295 and 2231221132304.

It is not an unprimeable number, because it can be changed into a prime (2231221132337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111561056607 + ... + 111561056626.

Almost surely, 2^{2231221132330} is an apocalyptic number.

2231221132330 is a deficient number, since it is larger than the sum of its proper divisors (1784976905882).

2231221132330 is a wasteful number, since it uses less digits than its factorization.

2231221132330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223122113240.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 2231221132330 its reverse (332311221322), we get a palindrome (2563532353652).

The spelling of 2231221132330 in words is "two trillion, two hundred thirty-one billion, two hundred twenty-one million, one hundred thirty-two thousand, three hundred thirty".