121000222012111 has 16 divisors (see below), whose sum is σ = 130338085760064. Its totient is φ = 111666668246784.

The previous prime is 121000222011997. The next prime is 121000222012127. The reversal of 121000222012111 is 111210222000121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121000222012111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121000222012141) 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, 2087009355 + ... + 2087067331.

It is an arithmetic number, because the mean of its divisors is an integer number (8146130360004).

Almost surely, 2^{121000222012111} is an apocalyptic number.

121000222012111 is a deficient number, since it is larger than the sum of its proper divisors (9337863747953).

121000222012111 is a wasteful number, since it uses less digits than its factorization.

121000222012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92370.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121000222012111 its reverse (111210222000121), we get a palindrome (232210444012232).

The spelling of 121000222012111 in words is "one hundred twenty-one trillion, two hundred twenty-two million, twelve thousand, one hundred eleven".