1221111330301 has 16 divisors (see below), whose sum is σ = 1313002068480. Its totient is φ = 1131495240960.

The previous prime is 1221111330289. The next prime is 1221111330317. The reversal of 1221111330301 is 1030331111221.

It is a cyclic number.

It is not a de Polignac number, because 1221111330301 - 2²⁷ = 1220977112573 is a prime.

It is a super-2 number, since 2×1221111330301² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221111330371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142300 + ... + 1569226.

It is an arithmetic number, because the mean of its divisors is an integer number (82062629280).

Almost surely, 2^{1221111330301} is an apocalyptic number.

It is an amenable number.

1221111330301 is a deficient number, since it is larger than the sum of its proper divisors (91890738179).

1221111330301 is a wasteful number, since it uses less digits than its factorization.

1221111330301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427724.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1221111330301 its reverse (1030331111221), we get a palindrome (2251442441522).

The spelling of 1221111330301 in words is "one trillion, two hundred twenty-one billion, one hundred eleven million, three hundred thirty thousand, three hundred one".