1121211210203 has 8 divisors (see below), whose sum is σ = 1312637514720. Its totient is φ = 937598224320.

The previous prime is 1121211210181. The next prime is 1121211210221. The reversal of 1121211210203 is 3020121121211.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1121211210203 - 2⁶ = 1121211210139 is a prime.

It is a super-2 number, since 2×1121211210203² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1121211210233) 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, 1953329348 + ... + 1953329921.

It is an arithmetic number, because the mean of its divisors is an integer number (164079689340).

Almost surely, 2^{1121211210203} is an apocalyptic number.

1121211210203 is a deficient number, since it is larger than the sum of its proper divisors (191426304517).

1121211210203 is an equidigital number, since it uses as much as digits as its factorization.

1121211210203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906659317.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1121211210203 its reverse (3020121121211), we get a palindrome (4141332331414).

The spelling of 1121211210203 in words is "one trillion, one hundred twenty-one billion, two hundred eleven million, two hundred ten thousand, two hundred three".