1211201211203 has 8 divisors (see below), whose sum is σ = 1293385054080. Its totient is φ = 1131711920640.

The previous prime is 1211201211193. The next prime is 1211201211217. The reversal of 1211201211203 is 3021121021121.

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 a de Polignac number, because none of the positive numbers 2^k-1211201211203 is a prime.

It is a super-2 number, since 2×1211201211203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211201214203) 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, 673637150 + ... + 673638947.

It is an arithmetic number, because the mean of its divisors is an integer number (161673131760).

Almost surely, 2^{1211201211203} is an apocalyptic number.

1211201211203 is a deficient number, since it is larger than the sum of its proper divisors (82183842877).

1211201211203 is a wasteful number, since it uses less digits than its factorization.

1211201211203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347276157.

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

Adding to 1211201211203 its reverse (3021121021121), we get a palindrome (4232322232324).

The spelling of 1211201211203 in words is "one trillion, two hundred eleven billion, two hundred one million, two hundred eleven thousand, two hundred three".