2012001221203 has 4 divisors (see below), whose sum is σ = 2012206936048. Its totient is φ = 2011795506360.

The previous prime is 2012001221189. The next prime is 2012001221257. The reversal of 2012001221203 is 3021221002102.

It is a happy number.

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 2012001221203 - 2¹⁷ = 2012001090131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012001221803) 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, 102842751 + ... + 102862312.

It is an arithmetic number, because the mean of its divisors is an integer number (503051734012).

Almost surely, 2^{2012001221203} is an apocalyptic number.

2012001221203 is a deficient number, since it is larger than the sum of its proper divisors (205714845).

2012001221203 is an equidigital number, since it uses as much as digits as its factorization.

2012001221203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205714844.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2012001221203 its reverse (3021221002102), we get a palindrome (5033222223305).

The spelling of 2012001221203 in words is "two trillion, twelve billion, one million, two hundred twenty-one thousand, two hundred three".