1113212201 has 4 divisors (see below), whose sum is σ = 1149122304. Its totient is φ = 1077302100.

The previous prime is 1113212137. The next prime is 1113212273. The reversal of 1113212201 is 1022123111.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1022123111 = 2351 ⋅434761.

It is a cyclic number.

It is not a de Polignac number, because 1113212201 - 2⁶ = 1113212137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113212501) 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, 17955005 + ... + 17955066.

It is an arithmetic number, because the mean of its divisors is an integer number (287280576).

Almost surely, 2^1113212201 is an apocalyptic number.

It is an amenable number.

1113212201 is a deficient number, since it is larger than the sum of its proper divisors (35910103).

1113212201 is an equidigital number, since it uses as much as digits as its factorization.

1113212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35910102.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1113212201 is about 33364.8347965339. The cubic root of 1113212201 is about 1036.3966150494.

Adding to 1113212201 its reverse (1022123111), we get a palindrome (2135335312).

The spelling of 1113212201 in words is "one billion, one hundred thirteen million, two hundred twelve thousand, two hundred one".