322212121345 has 8 divisors (see below), whose sum is σ = 399987461160. Its totient is φ = 248881086720.

The previous prime is 322212121331. The next prime is 322212121367. The reversal of 322212121345 is 543121212223.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 35790207489 + 286421913856 = 189183^2 + 535184^2 .

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

It is not a de Polignac number, because 322212121345 - 2¹⁷ = 322211990273 is a prime.

It is a super-2 number, since 2×322212121345² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1111076136 + ... + 1111076425.

It is an arithmetic number, because the mean of its divisors is an integer number (49998432645).

Almost surely, 2^322212121345 is an apocalyptic number.

It is an amenable number.

322212121345 is a deficient number, since it is larger than the sum of its proper divisors (77775339815).

322212121345 is a wasteful number, since it uses less digits than its factorization.

322212121345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222152595.

The product of its digits is 5760, while the sum is 28.

Adding to 322212121345 its reverse (543121212223), we get a palindrome (865333333568).

The spelling of 322212121345 in words is "three hundred twenty-two billion, two hundred twelve million, one hundred twenty-one thousand, three hundred forty-five".