10121121112203 has 32 divisors (see below), whose sum is σ = 15521053593600. Its totient is φ = 6511566628800.

The previous prime is 10121121112199. The next prime is 10121121112247. The reversal of 10121121112203 is 30221112112101.

It is a happy number.

It is not a de Polignac number, because 10121121112203 - 2² = 10121121112199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10121121112603) 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, 16540938 + ... + 17141903.

It is an arithmetic number, because the mean of its divisors is an integer number (485032924800).

Almost surely, 2^{10121121112203} is an apocalyptic number.

10121121112203 is a deficient number, since it is larger than the sum of its proper divisors (5399932481397).

10121121112203 is a wasteful number, since it uses less digits than its factorization.

10121121112203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33683240 (or 33683234 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 10121121112203 its reverse (30221112112101), we get a palindrome (40342233224304).

The spelling of 10121121112203 in words is "ten trillion, one hundred twenty-one billion, one hundred twenty-one million, one hundred twelve thousand, two hundred three".