2212356542 has 32 divisors (see below), whose sum is σ = 3863013120. Its totient is φ = 939625920.

The previous prime is 2212356533. The next prime is 2212356563. The reversal of 2212356542 is 2456532122.

It is a junction number, because it is equal to n+sod(n) for n = 2212356499 and 2212356508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5738 + ... + 66765.

It is an arithmetic number, because the mean of its divisors is an integer number (120719160).

Almost surely, 2^2212356542 is an apocalyptic number.

2212356542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2212356542 is a deficient number, since it is larger than the sum of its proper divisors (1650656578).

2212356542 is a wasteful number, since it uses less digits than its factorization.

2212356542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72608.

The product of its digits is 28800, while the sum is 32.

The square root of 2212356542 is about 47035.6943395120. The cubic root of 2212356542 is about 1303.0218739033.

Adding to 2212356542 its reverse (2456532122), we get a palindrome (4668888664).

The spelling of 2212356542 in words is "two billion, two hundred twelve million, three hundred fifty-six thousand, five hundred forty-two".