212123011132111 has 8 divisors (see below), whose sum is σ = 212228036423424. Its totient is φ = 212018008899480.

The previous prime is 212123011132103. The next prime is 212123011132117. The reversal of 212123011132111 is 111231110321212.

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 212123011132111 - 2³ = 212123011132103 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 (212123011132117) 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, 12652980 + ... + 24173206.

It is an arithmetic number, because the mean of its divisors is an integer number (26528504552928).

Almost surely, 2^{212123011132111} is an apocalyptic number.

212123011132111 is a deficient number, since it is larger than the sum of its proper divisors (105025291313).

212123011132111 is a wasteful number, since it uses less digits than its factorization.

212123011132111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11529341.

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 212123011132111 its reverse (111231110321212), we get a palindrome (323354121453323).

The spelling of 212123011132111 in words is "two hundred twelve trillion, one hundred twenty-three billion, eleven million, one hundred thirty-two thousand, one hundred eleven".