1012110122221 has 8 divisors (see below), whose sum is σ = 1104148749600. Its totient is φ = 920076264240.

The previous prime is 1012110122201. The next prime is 1012110122227. The reversal of 1012110122221 is 1222210112101.

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

It is a cyclic number.

It is not a de Polignac number, because 1012110122221 - 2¹¹ = 1012110120173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012110122195 and 1012110122204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012110122227) 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, 741211 + ... + 1604248.

It is an arithmetic number, because the mean of its divisors is an integer number (138018593700).

Almost surely, 2^{1012110122221} is an apocalyptic number.

1012110122221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1012110122221 is a deficient number, since it is larger than the sum of its proper divisors (92038627379).

1012110122221 is a wasteful number, since it uses less digits than its factorization.

1012110122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2384699.

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

Adding to 1012110122221 its reverse (1222210112101), we get a palindrome (2234320234322).

The spelling of 1012110122221 in words is "one trillion, twelve billion, one hundred ten million, one hundred twenty-two thousand, two hundred twenty-one".