212013111 has 8 divisors (see below), whose sum is σ = 283390704. Its totient is φ = 140988800.

The previous prime is 212013107. The next prime is 212013119. The reversal of 212013111 is 111310212.

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 212013111 - 2² = 212013107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212013119) 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, 86916 + ... + 89321.

It is an arithmetic number, because the mean of its divisors is an integer number (35423838).

Almost surely, 2^212013111 is an apocalyptic number.

212013111 is a deficient number, since it is larger than the sum of its proper divisors (71377593).

212013111 is a wasteful number, since it uses less digits than its factorization.

212013111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176641.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 212013111 is about 14560.6700051886. The cubic root of 212013111 is about 596.2854875617.

Adding to 212013111 its reverse (111310212), we get a palindrome (323323323).

The spelling of 212013111 in words is "two hundred twelve million, thirteen thousand, one hundred eleven".