1220012022122 has 8 divisors (see below), whose sum is σ = 1937666152836. Its totient is φ = 574123304512.

The previous prime is 1220012022091. The next prime is 1220012022143. The reversal of 1220012022122 is 2212202100221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1212357347041 + 7654675081 = 1101071^2 + 87491^2 .

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

It is a super-2 number, since 2×1220012022122² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1220012022122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17941353233 + ... + 17941353300.

Almost surely, 2^{1220012022122} is an apocalyptic number.

1220012022122 is a deficient number, since it is larger than the sum of its proper divisors (717654130714).

1220012022122 is a wasteful number, since it uses less digits than its factorization.

1220012022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35882706552.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1220012022122 its reverse (2212202100221), we get a palindrome (3432214122343).

The spelling of 1220012022122 in words is "one trillion, two hundred twenty billion, twelve million, twenty-two thousand, one hundred twenty-two".