1113212212203 has 32 divisors (see below), whose sum is σ = 1889803238400. Its totient is φ = 566940963456.

The previous prime is 1113212212201. The next prime is 1113212212243. The reversal of 1113212212203 is 3022122123111.

It is not a de Polignac number, because 1113212212203 - 2¹ = 1113212212201 is a prime.

It is a super-2 number, since 2×1113212212203² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1113212212203.

It is not an unprimeable number, because it can be changed into a prime (1113212212201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70297263 + ... + 70313096.

It is an arithmetic number, because the mean of its divisors is an integer number (59056351200).

Almost surely, 2^{1113212212203} is an apocalyptic number.

1113212212203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1113212212203 is a deficient number, since it is larger than the sum of its proper divisors (776591026197).

1113212212203 is a wasteful number, since it uses less digits than its factorization.

1113212212203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140610411.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1113212212203 its reverse (3022122123111), we get a palindrome (4135334335314).

The spelling of 1113212212203 in words is "one trillion, one hundred thirteen billion, two hundred twelve million, two hundred twelve thousand, two hundred three".