1113201202021 has 4 divisors (see below), whose sum is σ = 1139089602112. Its totient is φ = 1087312801932.

The previous prime is 1113201202019. The next prime is 1113201202037. The reversal of 1113201202021 is 1202021023111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1113201202021 - 2¹ = 1113201202019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1113201201986 and 1113201202004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113201202081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12944199981 + ... + 12944200066.

It is an arithmetic number, because the mean of its divisors is an integer number (284772400528).

Almost surely, 2^{1113201202021} is an apocalyptic number.

It is an amenable number.

1113201202021 is a deficient number, since it is larger than the sum of its proper divisors (25888400091).

1113201202021 is an equidigital number, since it uses as much as digits as its factorization.

1113201202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25888400090.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1113201202021 its reverse (1202021023111), we get a palindrome (2315222225132).

The spelling of 1113201202021 in words is "one trillion, one hundred thirteen billion, two hundred one million, two hundred two thousand, twenty-one".