1222001011121 has 8 divisors (see below), whose sum is σ = 1354945980288. Its totient is φ = 1092698370000.

The previous prime is 1222001011109. The next prime is 1222001011171. The reversal of 1222001011121 is 1211101002221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222001011121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1222001011096 and 1222001011105.

It is not an unprimeable number, because it can be changed into a prime (1222001011171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 910581305 + ... + 910582646.

It is an arithmetic number, because the mean of its divisors is an integer number (169368247536).

Almost surely, 2^{1222001011121} is an apocalyptic number.

1222001011121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1222001011121 is a deficient number, since it is larger than the sum of its proper divisors (132944969167).

1222001011121 is a wasteful number, since it uses less digits than its factorization.

1222001011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821164023.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1222001011121 its reverse (1211101002221), we get a palindrome (2433102013342).

The spelling of 1222001011121 in words is "one trillion, two hundred twenty-two billion, one million, eleven thousand, one hundred twenty-one".