121012211000111 has 8 divisors (see below), whose sum is σ = 125613684518400. Its totient is φ = 116454353344920.

The previous prime is 121012211000101. The next prime is 121012211000123. The reversal of 121012211000111 is 111000112210121.

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 121012211000111 - 2⁶ = 121012211000047 is a prime.

It is a super-2 number, since 2×121012211000111² (a number of 29 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 (121012211000101) 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, 10903960121 + ... + 10903971218.

It is an arithmetic number, because the mean of its divisors is an integer number (15701710564800).

Almost surely, 2^{121012211000111} is an apocalyptic number.

121012211000111 is a deficient number, since it is larger than the sum of its proper divisors (4601473518289).

121012211000111 is a wasteful number, since it uses less digits than its factorization.

121012211000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21807931549.

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

Adding to 121012211000111 its reverse (111000112210121), we get a palindrome (232012323210232).

The spelling of 121012211000111 in words is "one hundred twenty-one trillion, twelve billion, two hundred eleven million, one hundred eleven", and thus it is an aban number.