1202211210221 has 16 divisors (see below), whose sum is σ = 1375652382720. Its totient is φ = 1029194968320.

The previous prime is 1202211210181. The next prime is 1202211210223. The reversal of 1202211210221 is 1220121122021.

It is a cyclic number.

It is not a de Polignac number, because 1202211210221 - 2¹⁸ = 1202210948077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1202211210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202211210223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20298311 + ... + 20357451.

It is an arithmetic number, because the mean of its divisors is an integer number (85978273920).

Almost surely, 2^{1202211210221} is an apocalyptic number.

It is an amenable number.

1202211210221 is a deficient number, since it is larger than the sum of its proper divisors (173441172499).

1202211210221 is a wasteful number, since it uses less digits than its factorization.

1202211210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62684.

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

Adding to 1202211210221 its reverse (1220121122021), we get a palindrome (2422332332242).

The spelling of 1202211210221 in words is "one trillion, two hundred two billion, two hundred eleven million, two hundred ten thousand, two hundred twenty-one".