1221102110122 has 8 divisors (see below), whose sum is σ = 1832908586400. Its totient is φ = 610132581324.

The previous prime is 1221102110101. The next prime is 1221102110131. The reversal of 1221102110122 is 2210112011221.

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 = 1221102110096 and 1221102110105.

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, 209233222 + ... + 209239057.

It is an arithmetic number, because the mean of its divisors is an integer number (229113573300).

Almost surely, 2^{1221102110122} is an apocalyptic number.

1221102110122 is a deficient number, since it is larger than the sum of its proper divisors (611806476278).

1221102110122 is a wasteful number, since it uses less digits than its factorization.

1221102110122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418473740.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1221102110122 its reverse (2210112011221), we get a palindrome (3431214121343).

The spelling of 1221102110122 in words is "one trillion, two hundred twenty-one billion, one hundred two million, one hundred ten thousand, one hundred twenty-two".