1222100121203 has 4 divisors (see below), whose sum is σ = 1316107822848. Its totient is φ = 1128092419560.

The previous prime is 1222100121149. The next prime is 1222100121211. The reversal of 1222100121203 is 3021210012221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1222100121203 - 2²⁰ = 1222099072627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222100121283) 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, 47003850803 + ... + 47003850828.

It is an arithmetic number, because the mean of its divisors is an integer number (329026955712).

Almost surely, 2^{1222100121203} is an apocalyptic number.

1222100121203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1222100121203 is a deficient number, since it is larger than the sum of its proper divisors (94007701645).

1222100121203 is an equidigital number, since it uses as much as digits as its factorization.

1222100121203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94007701644.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1222100121203 its reverse (3021210012221), we get a palindrome (4243310133424).

The spelling of 1222100121203 in words is "one trillion, two hundred twenty-two billion, one hundred million, one hundred twenty-one thousand, two hundred three".