1221030313202 has 16 divisors (see below), whose sum is σ = 2137730883840. Its totient is φ = 512164690368.

The previous prime is 1221030313193. The next prime is 1221030313207. The reversal of 1221030313202 is 2023130301221.

It is not an unprimeable number, because it can be changed into a prime (1221030313207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 927833927 + ... + 927835242.

It is an arithmetic number, because the mean of its divisors is an integer number (133608180240).

Almost surely, 2^{1221030313202} is an apocalyptic number.

1221030313202 is a deficient number, since it is larger than the sum of its proper divisors (916700570638).

1221030313202 is a wasteful number, since it uses less digits than its factorization.

1221030313202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855669225.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1221030313202 its reverse (2023130301221), we get a palindrome (3244160614423).

The spelling of 1221030313202 in words is "one trillion, two hundred twenty-one billion, thirty million, three hundred thirteen thousand, two hundred two".