1220012021122 has 8 divisors (see below), whose sum is σ = 1830216909456. Its totient is φ = 609939717972.

The previous prime is 1220012021101. The next prime is 1220012021141. The reversal of 1220012021122 is 2211202100221.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1220012021096 and 1220012021105.

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, 33123288 + ... + 33160099.

It is an arithmetic number, because the mean of its divisors is an integer number (228777113682).

Almost surely, 2^{1220012021122} is an apocalyptic number.

1220012021122 is a deficient number, since it is larger than the sum of its proper divisors (610204888334).

1220012021122 is an equidigital number, since it uses as much as digits as its factorization.

1220012021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66292592.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1220012021122 its reverse (2211202100221), we get a palindrome (3431214121343).

The spelling of 1220012021122 in words is "one trillion, two hundred twenty billion, twelve million, twenty-one thousand, one hundred twenty-two".