1220122112222 has 32 divisors (see below), whose sum is σ = 1998939285504. Its totient is φ = 555142744800.

The previous prime is 1220122112219. The next prime is 1220122112267. The reversal of 1220122112222 is 2222112210221.

It is a junction number, because it is equal to n+sod(n) for n = 1220122112194 and 1220122112203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20592083 + ... + 20651249.

It is an arithmetic number, because the mean of its divisors is an integer number (62466852672).

Almost surely, 2^{1220122112222} is an apocalyptic number.

1220122112222 is a deficient number, since it is larger than the sum of its proper divisors (778817173282).

1220122112222 is a wasteful number, since it uses less digits than its factorization.

1220122112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70424.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1220122112222 its reverse (2222112210221), we get a palindrome (3442234322443).

The spelling of 1220122112222 in words is "one trillion, two hundred twenty billion, one hundred twenty-two million, one hundred twelve thousand, two hundred twenty-two".