1202113221 has 16 divisors (see below), whose sum is σ = 1622044224. Its totient is φ = 791835264.

The previous prime is 1202113207. The next prime is 1202113267. The reversal of 1202113221 is 1223112021.

It is not a de Polignac number, because 1202113221 - 2⁷ = 1202113093 is a prime.

It is a super-2 number, since 2×1202113221² = 2890152392205989682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1202113221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202113021) 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, 122721 + ... + 132153.

It is an arithmetic number, because the mean of its divisors is an integer number (101377764).

Almost surely, 2^1202113221 is an apocalyptic number.

It is an amenable number.

1202113221 is a deficient number, since it is larger than the sum of its proper divisors (419931003).

1202113221 is a wasteful number, since it uses less digits than its factorization.

1202113221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9940.

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

The square root of 1202113221 is about 34671.5044525039. The cubic root of 1202113221 is about 1063.2819901529.

Adding to 1202113221 its reverse (1223112021), we get a palindrome (2425225242).

The spelling of 1202113221 in words is "one billion, two hundred two million, one hundred thirteen thousand, two hundred twenty-one".