121121223300111 has 8 divisors (see below), whose sum is σ = 170994668188464. Its totient is φ = 75997630305920.

The previous prime is 121121223300107. The next prime is 121121223300139. The reversal of 121121223300111 is 111003322121121.

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 121121223300111 - 2² = 121121223300107 is a prime.

It is a super-2 number, since 2×121121223300111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121121223300101) 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, 1187462973480 + ... + 1187462973581.

It is an arithmetic number, because the mean of its divisors is an integer number (21374333523558).

Almost surely, 2^{121121223300111} is an apocalyptic number.

121121223300111 is a deficient number, since it is larger than the sum of its proper divisors (49873444888353).

121121223300111 is a wasteful number, since it uses less digits than its factorization.

121121223300111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2374925947081.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 121121223300111 its reverse (111003322121121), we get a palindrome (232124545421232).

The spelling of 121121223300111 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, two hundred twenty-three million, three hundred thousand, one hundred eleven".