1222102112021 has 24 divisors (see below), whose sum is σ = 1445866094880. Its totient is φ = 1029660660000.

The previous prime is 1222102112009. The next prime is 1222102112113. The reversal of 1222102112021 is 1202112012221.

It is not a de Polignac number, because 1222102112021 - 2¹⁰ = 1222102110997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222102114021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52549646 + ... + 52572896.

It is an arithmetic number, because the mean of its divisors is an integer number (60244420620).

Almost surely, 2^{1222102112021} is an apocalyptic number.

It is an amenable number.

1222102112021 is a deficient number, since it is larger than the sum of its proper divisors (223763982859).

1222102112021 is a wasteful number, since it uses less digits than its factorization.

1222102112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41505 (or 41498 counting only the distinct ones).

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

Adding to 1222102112021 its reverse (1202112012221), we get a palindrome (2424214124242).

The spelling of 1222102112021 in words is "one trillion, two hundred twenty-two billion, one hundred two million, one hundred twelve thousand, twenty-one".