212401322 has 8 divisors (see below), whose sum is σ = 364116576. Its totient is φ = 91029132.

The previous prime is 212401309. The next prime is 212401339. The reversal of 212401322 is 223104212.

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

It is a super-2 number, since 2×212401322² = 90228643174695368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212401322.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7585748 + ... + 7585775.

It is an arithmetic number, because the mean of its divisors is an integer number (45514572).

Almost surely, 2^212401322 is an apocalyptic number.

212401322 is a deficient number, since it is larger than the sum of its proper divisors (151715254).

212401322 is a wasteful number, since it uses less digits than its factorization.

212401322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15171532.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 212401322 is about 14573.9947166177. The cubic root of 212401322 is about 596.6492126157.

Adding to 212401322 its reverse (223104212), we get a palindrome (435505534).

The spelling of 212401322 in words is "two hundred twelve million, four hundred one thousand, three hundred twenty-two".