1202102112221 has 12 divisors (see below), whose sum is σ = 1297176612480. Its totient is φ = 1112745278040.

The previous prime is 1202102112191. The next prime is 1202102112223. The reversal of 1202102112221 is 1222112012021.

It is a de Polignac number, because none of the positive numbers 2^k-1202102112221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1202102112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202102112223) 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, 36635291 + ... + 36668088.

It is an arithmetic number, because the mean of its divisors is an integer number (108098051040).

Almost surely, 2^{1202102112221} is an apocalyptic number.

It is an amenable number.

1202102112221 is a deficient number, since it is larger than the sum of its proper divisors (95074500259).

1202102112221 is an equidigital number, since it uses as much as digits as its factorization.

1202102112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73303456 (or 73303433 counting only the distinct ones).

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

Adding to 1202102112221 its reverse (1222112012021), we get a palindrome (2424214124242).

The spelling of 1202102112221 in words is "one trillion, two hundred two billion, one hundred two million, one hundred twelve thousand, two hundred twenty-one".