1221112033301 has 4 divisors (see below), whose sum is σ = 1222140772512. Its totient is φ = 1220083294092.

The previous prime is 1221112033289. The next prime is 1221112033307. The reversal of 1221112033301 is 1033302111221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1221112033301 is a prime.

It is a super-2 number, since 2×1221112033301² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221112033307) 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, 514367825 + ... + 514370198.

It is an arithmetic number, because the mean of its divisors is an integer number (305535193128).

Almost surely, 2^{1221112033301} is an apocalyptic number.

It is an amenable number.

1221112033301 is a deficient number, since it is larger than the sum of its proper divisors (1028739211).

1221112033301 is a wasteful number, since it uses less digits than its factorization.

1221112033301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028739210.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1221112033301 its reverse (1033302111221), we get a palindrome (2254414144522).

The spelling of 1221112033301 in words is "one trillion, two hundred twenty-one billion, one hundred twelve million, thirty-three thousand, three hundred one".