13202022121 has 8 divisors (see below), whose sum is σ = 13574527560. Its totient is φ = 12834087552.

The previous prime is 13202022101. The next prime is 13202022143. The reversal of 13202022121 is 12122020231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 922944400 + 12279077721 = 30380^2 + 110811^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13202022121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13202022095 and 13202022104.

It is not an unprimeable number, because it can be changed into a prime (13202022101) 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, 1136860 + ... + 1148413.

It is an arithmetic number, because the mean of its divisors is an integer number (1696815945).

Almost surely, 2^13202022121 is an apocalyptic number.

It is an amenable number.

13202022121 is a deficient number, since it is larger than the sum of its proper divisors (372505439).

13202022121 is a wasteful number, since it uses less digits than its factorization.

13202022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285435.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 13202022121 its reverse (12122020231), we get a palindrome (25324042352).

The spelling of 13202022121 in words is "thirteen billion, two hundred two million, twenty-two thousand, one hundred twenty-one".