121102211001203 has 16 divisors (see below), whose sum is σ = 128481815329056. Its totient is φ = 113751201054720.

The previous prime is 121102211001199. The next prime is 121102211001229. The reversal of 121102211001203 is 302100112201121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121102211001203 - 2² = 121102211001199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121102211001253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22409123 + ... + 27283203.

It is an arithmetic number, because the mean of its divisors is an integer number (8030113458066).

Almost surely, 2^{121102211001203} is an apocalyptic number.

121102211001203 is a deficient number, since it is larger than the sum of its proper divisors (7379604327853).

121102211001203 is a wasteful number, since it uses less digits than its factorization.

121102211001203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4877014.

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

Adding to 121102211001203 its reverse (302100112201121), we get a palindrome (423202323202324).

The spelling of 121102211001203 in words is "one hundred twenty-one trillion, one hundred two billion, two hundred eleven million, one thousand, two hundred three".