121222300111 has 12 divisors (see below), whose sum is σ = 133259242536. Its totient is φ = 110189771120.

The previous prime is 121222300091. The next prime is 121222300127. The reversal of 121222300111 is 111003222121.

It is not a de Polignac number, because 121222300111 - 2⁵ = 121222300079 is a prime.

It is a super-2 number, since 2×121222300111² (a number of 23 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 (121222306111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1135065 + ... + 1237261.

It is an arithmetic number, because the mean of its divisors is an integer number (11104936878).

Almost surely, 2^121222300111 is an apocalyptic number.

121222300111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121222300111 is a deficient number, since it is larger than the sum of its proper divisors (12036942425).

121222300111 is a wasteful number, since it uses less digits than its factorization.

121222300111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112022 (or 112011 counting only the distinct ones).

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

Adding to 121222300111 its reverse (111003222121), we get a palindrome (232225522232).

The spelling of 121222300111 in words is "one hundred twenty-one billion, two hundred twenty-two million, three hundred thousand, one hundred eleven".