212012111101123 has 8 divisors (see below), whose sum is σ = 223174888798400. Its totient is φ = 200849757957288.

The previous prime is 212012111101111. The next prime is 212012111101139. The reversal of 212012111101123 is 321101111210212.

212012111101123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212012111101123 - 2¹³ = 212012111092931 is a prime.

It is a super-2 number, since 2×212012111101123² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212012111101123.

It is not an unprimeable number, because it can be changed into a prime (212012111101223) 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, 105113061 + ... + 107111062.

It is an arithmetic number, because the mean of its divisors is an integer number (27896861099800).

Almost surely, 2^{212012111101123} is an apocalyptic number.

212012111101123 is a deficient number, since it is larger than the sum of its proper divisors (11162777697277).

212012111101123 is a wasteful number, since it uses less digits than its factorization.

212012111101123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212276721.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 212012111101123 its reverse (321101111210212), we get a palindrome (533113222311335).

The spelling of 212012111101123 in words is "two hundred twelve trillion, twelve billion, one hundred eleven million, one hundred one thousand, one hundred twenty-three".