1120212022221 has 12 divisors (see below), whose sum is σ = 1618172742940. Its totient is φ = 746767071360.

The previous prime is 1120212022201. The next prime is 1120212022289. The reversal of 1120212022221 is 1222202120211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 998972264196 + 121239758025 = 999486^2 + 348195^2 .

It is not a de Polignac number, because 1120212022221 - 2¹⁰ = 1120212021197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120212022194 and 1120212022203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120212022201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3238210 + ... + 3567411.

Almost surely, 2^{1120212022221} is an apocalyptic number.

It is an amenable number.

1120212022221 is a deficient number, since it is larger than the sum of its proper divisors (497960720719).

1120212022221 is a wasteful number, since it uses less digits than its factorization.

1120212022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6823916 (or 6823913 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1120212022221 its reverse (1222202120211), we get a palindrome (2342414142432).

The spelling of 1120212022221 in words is "one trillion, one hundred twenty billion, two hundred twelve million, twenty-two thousand, two hundred twenty-one".