121201100102111 has 8 divisors (see below), whose sum is σ = 121734398232000. Its totient is φ = 120668020144000.

The previous prime is 121201100102099. The next prime is 121201100102209. The reversal of 121201100102111 is 111201001102121.

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 121201100102111 - 2³⁴ = 121183920232927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201100102611) 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, 53429390 + ... + 55651611.

It is an arithmetic number, because the mean of its divisors is an integer number (15216799779000).

Almost surely, 2^{121201100102111} is an apocalyptic number.

121201100102111 is a deficient number, since it is larger than the sum of its proper divisors (533298129889).

121201100102111 is a wasteful number, since it uses less digits than its factorization.

121201100102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109085889.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121201100102111 its reverse (111201001102121), we get a palindrome (232402101204232).

The spelling of 121201100102111 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred million, one hundred two thousand, one hundred eleven".