1222102021121 has 8 divisors (see below), whose sum is σ = 1240239876864. Its totient is φ = 1204001915040.

The previous prime is 1222102021073. The next prime is 1222102021139. The reversal of 1222102021121 is 1211202012221.

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-1222102021121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222102021121.

It is not an unprimeable number, because it can be changed into a prime (1222102020121) 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, 9372185 + ... + 9501686.

It is an arithmetic number, because the mean of its divisors is an integer number (155029984608).

Almost surely, 2^{1222102021121} is an apocalyptic number.

It is an amenable number.

1222102021121 is a deficient number, since it is larger than the sum of its proper divisors (18137855743).

1222102021121 is an equidigital number, since it uses as much as digits as its factorization.

1222102021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18874831.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1222102021121 its reverse (1211202012221), we get a palindrome (2433304033342).

The spelling of 1222102021121 in words is "one trillion, two hundred twenty-two billion, one hundred two million, twenty-one thousand, one hundred twenty-one".