1221110013301 has 8 divisors (see below), whose sum is σ = 1222040690784. Its totient is φ = 1220179642800.

The previous prime is 1221110013281. The next prime is 1221110013323. The reversal of 1221110013301 is 1033100111221.

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 not a de Polignac number, because 1221110013301 - 2⁵ = 1221110013269 is a prime.

It is a super-2 number, since 2×1221110013301² (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 (1221110013371) 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, 8220450 + ... + 8367676.

It is an arithmetic number, because the mean of its divisors is an integer number (152755086348).

Almost surely, 2^{1221110013301} is an apocalyptic number.

It is an amenable number.

1221110013301 is a deficient number, since it is larger than the sum of its proper divisors (930677483).

1221110013301 is a wasteful number, since it uses less digits than its factorization.

1221110013301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153491.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1221110013301 its reverse (1033100111221), we get a palindrome (2254210124522).

The spelling of 1221110013301 in words is "one trillion, two hundred twenty-one billion, one hundred ten million, thirteen thousand, three hundred one".