121122012212111 has 8 divisors (see below), whose sum is σ = 125142092549760. Its totient is φ = 117156626845272.

The previous prime is 121122012212021. The next prime is 121122012212203. The reversal of 121122012212111 is 111212210221121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121122012212111 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 (121122012212911) 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, 13673738201 + ... + 13673747058.

It is an arithmetic number, because the mean of its divisors is an integer number (15642761568720).

Almost surely, 2^{121122012212111} is an apocalyptic number.

121122012212111 is a deficient number, since it is larger than the sum of its proper divisors (4020080337649).

121122012212111 is a wasteful number, since it uses less digits than its factorization.

121122012212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27347485405.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 121122012212111 its reverse (111212210221121), we get a palindrome (232334222433232).

The spelling of 121122012212111 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, twelve million, two hundred twelve thousand, one hundred eleven".