2221112012122 has 8 divisors (see below), whose sum is σ = 3331683543636. Its totient is φ = 1110550830912.

The previous prime is 2221112012099. The next prime is 2221112012177. The reversal of 2221112012122 is 2212102111222.

It can be written as a sum of positive squares in 2 ways, for example, as 2214742216401 + 6369795721 = 1488201^2 + 79811^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 2221112012122.

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 3 ways as a sum of consecutive naturals, for example, 2026783 + ... + 2924050.

Almost surely, 2^{2221112012122} is an apocalyptic number.

2221112012122 is a deficient number, since it is larger than the sum of its proper divisors (1110571531514).

2221112012122 is a wasteful number, since it uses less digits than its factorization.

2221112012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5175152.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2221112012122 its reverse (2212102111222), we get a palindrome (4433214123344).

The spelling of 2221112012122 in words is "two trillion, two hundred twenty-one billion, one hundred twelve million, twelve thousand, one hundred twenty-two".