13201122021 has 8 divisors (see below), whose sum is σ = 18366778560. Its totient is φ = 8418106752.

The previous prime is 13201122019. The next prime is 13201122023. The reversal of 13201122021 is 12022110231.

It is an interprime number because it is at equal distance from previous prime (13201122019) and next prime (13201122023).

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

It is not a de Polignac number, because 13201122021 - 2¹ = 13201122019 is a prime.

It is a super-2 number, since 2×13201122021² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13201122023) 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, 95660236 + ... + 95660373.

It is an arithmetic number, because the mean of its divisors is an integer number (2295847320).

Almost surely, 2^13201122021 is an apocalyptic number.

It is an amenable number.

13201122021 is a deficient number, since it is larger than the sum of its proper divisors (5165656539).

13201122021 is a wasteful number, since it uses less digits than its factorization.

13201122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191320635.

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

Adding to 13201122021 its reverse (12022110231), we get a palindrome (25223232252).

The spelling of 13201122021 in words is "thirteen billion, two hundred one million, one hundred twenty-two thousand, twenty-one".