1012222102221 has 12 divisors (see below), whose sum is σ = 1595016646080. Its totient is φ = 613467940680.

The previous prime is 1012222102207. The next prime is 1012222102223. The reversal of 1012222102221 is 1222012222101.

It is a happy number.

1012222102221 is a `hidden beast` number, since 10 + 1 + 222 + 210 + 2 + 221 = 666.

It is not a de Polignac number, because 1012222102221 - 2¹¹ = 1012222100173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012222102194 and 1012222102203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012222102223) 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, 5112232741 + ... + 5112232938.

It is an arithmetic number, because the mean of its divisors is an integer number (132918053840).

Almost surely, 2^{1012222102221} is an apocalyptic number.

1012222102221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1012222102221 is a deficient number, since it is larger than the sum of its proper divisors (582794543859).

1012222102221 is a wasteful number, since it uses less digits than its factorization.

1012222102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10224465696 (or 10224465693 counting only the distinct ones).

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

Adding to 1012222102221 its reverse (1222012222101), we get a palindrome (2234234324322).

The spelling of 1012222102221 in words is "one trillion, twelve billion, two hundred twenty-two million, one hundred two thousand, two hundred twenty-one".