1202211100221 has 32 divisors (see below), whose sum is σ = 1719028241280. Its totient is φ = 744658704384.

The previous prime is 1202211100193. The next prime is 1202211100247. The reversal of 1202211100221 is 1220011122021.

It is not a de Polignac number, because 1202211100221 - 2⁹ = 1202211099709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1202211100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202211100421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5346171 + ... + 5566503.

It is an arithmetic number, because the mean of its divisors is an integer number (53719632540).

Almost surely, 2^{1202211100221} is an apocalyptic number.

It is an amenable number.

1202211100221 is a deficient number, since it is larger than the sum of its proper divisors (516817141059).

1202211100221 is a wasteful number, since it uses less digits than its factorization.

1202211100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221725.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1202211100221 its reverse (1220011122021), we get a palindrome (2422222222242).

The spelling of 1202211100221 in words is "one trillion, two hundred two billion, two hundred eleven million, one hundred thousand, two hundred twenty-one".