1202131000221 has 32 divisors (see below), whose sum is σ = 1719630778368. Its totient is φ = 745034241600.

The previous prime is 1202131000211. The next prime is 1202131000223. The reversal of 1202131000221 is 1220001312021.

It is not a de Polignac number, because 1202131000221 - 2⁶ = 1202131000157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1202131000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202131000223) 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, 2055996 + ... + 2575146.

It is an arithmetic number, because the mean of its divisors is an integer number (53738461824).

Almost surely, 2^{1202131000221} is an apocalyptic number.

It is an amenable number.

1202131000221 is a deficient number, since it is larger than the sum of its proper divisors (517499778147).

1202131000221 is a wasteful number, since it uses less digits than its factorization.

1202131000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520121.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1202131000221 its reverse (1220001312021), we get a palindrome (2422132312242).

The spelling of 1202131000221 in words is "one trillion, two hundred two billion, one hundred thirty-one million, two hundred twenty-one", and thus it is an aban number.