1202111020221 has 16 divisors (see below), whose sum is σ = 1686283626048. Its totient is φ = 760729449600.

The previous prime is 1202111020207. The next prime is 1202111020249. The reversal of 1202111020221 is 1220201112021.

It is not a de Polignac number, because 1202111020221 - 2²⁶ = 1202043911357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1202111020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202111020291) 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, 132066535 + ... + 132075636.

It is an arithmetic number, because the mean of its divisors is an integer number (105392726628).

Almost surely, 2^{1202111020221} is an apocalyptic number.

It is an amenable number.

1202111020221 is a deficient number, since it is larger than the sum of its proper divisors (484172605827).

1202111020221 is a wasteful number, since it uses less digits than its factorization.

1202111020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264142252.

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

Adding to 1202111020221 its reverse (1220201112021), we get a palindrome (2422312132242).

The spelling of 1202111020221 in words is "one trillion, two hundred two billion, one hundred eleven million, twenty thousand, two hundred twenty-one".