2231212121322 has 64 divisors (see below), whose sum is σ = 4726885814784. Its totient is φ = 701227238400.

The previous prime is 2231212121293. The next prime is 2231212121363.

2231212121322 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×2231212121322³ (a number of 38 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2231212121292 and 2231212121301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4783 + ... + 2112450.

It is an arithmetic number, because the mean of its divisors is an integer number (73857590856).

Almost surely, 2^{2231212121322} is an apocalyptic number.

2231212121322 is an abundant number, since it is smaller than the sum of its proper divisors (2495673693462).

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

2231212121322 is a wasteful number, since it uses less digits than its factorization.

2231212121322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2117423.

The product of its digits is 1152, while the sum is 24.

The spelling of 2231212121322 in words is "two trillion, two hundred thirty-one billion, two hundred twelve million, one hundred twenty-one thousand, three hundred twenty-two".