1202110211221 has 16 divisors (see below), whose sum is σ = 1246897872000. Its totient is φ = 1157549133888.

The previous prime is 1202110211147. The next prime is 1202110211227. The reversal of 1202110211221 is 1221120112021.

It is a cyclic number.

It is not a de Polignac number, because 1202110211221 - 2³⁹ = 652354397333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202110211195 and 1202110211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202110211227) 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, 16274230 + ... + 16347928.

It is an arithmetic number, because the mean of its divisors is an integer number (77931117000).

Almost surely, 2^{1202110211221} is an apocalyptic number.

It is an amenable number.

1202110211221 is a deficient number, since it is larger than the sum of its proper divisors (44787660779).

1202110211221 is an equidigital number, since it uses as much as digits as its factorization.

1202110211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75228.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1202110211221 its reverse (1221120112021), we get a palindrome (2423230323242).

The spelling of 1202110211221 in words is "one trillion, two hundred two billion, one hundred ten million, two hundred eleven thousand, two hundred twenty-one".