1211202210103 has 4 divisors (see below), whose sum is σ = 1212622143208. Its totient is φ = 1209782277000.

The previous prime is 1211202209981. The next prime is 1211202210107. The reversal of 1211202210103 is 3010122021121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211202210103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211202210107) 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, 709965273 + ... + 709966978.

It is an arithmetic number, because the mean of its divisors is an integer number (303155535802).

Almost surely, 2^{1211202210103} is an apocalyptic number.

1211202210103 is a deficient number, since it is larger than the sum of its proper divisors (1419933105).

1211202210103 is an equidigital number, since it uses as much as digits as its factorization.

1211202210103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419933104.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1211202210103 its reverse (3010122021121), we get a palindrome (4221324231224).

The spelling of 1211202210103 in words is "one trillion, two hundred eleven billion, two hundred two million, two hundred ten thousand, one hundred three".