1211222301103 has 4 divisors (see below), whose sum is σ = 1211587901248. Its totient is φ = 1210856700960.

The previous prime is 1211222301083. The next prime is 1211222301109. The reversal of 1211222301103 is 3011032221121.

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 1211222301103 - 2²¹ = 1211220203951 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 (1211222301109) 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, 182795103 + ... + 182801728.

It is an arithmetic number, because the mean of its divisors is an integer number (302896975312).

Almost surely, 2^{1211222301103} is an apocalyptic number.

1211222301103 is a deficient number, since it is larger than the sum of its proper divisors (365600145).

1211222301103 is an equidigital number, since it uses as much as digits as its factorization.

1211222301103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365600144.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1211222301103 its reverse (3011032221121), we get a palindrome (4222254522224).

The spelling of 1211222301103 in words is "one trillion, two hundred eleven billion, two hundred twenty-two million, three hundred one thousand, one hundred three".