2123214111 has 24 divisors (see below), whose sum is σ = 3203141760. Its totient is φ = 1352692176.

The previous prime is 2123214103. The next prime is 2123214113. The reversal of 2123214111 is 1114123212.

2123214111 is a `hidden beast` number, since 21 + 232 + 1 + 411 + 1 = 666.

It is not a de Polignac number, because 2123214111 - 2³ = 2123214103 is a prime.

It is a super-2 number, since 2×2123214111² = 9016076322299040642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123214113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 256540 + ... + 264686.

It is an arithmetic number, because the mean of its divisors is an integer number (133464240).

Almost surely, 2^2123214111 is an apocalyptic number.

2123214111 is a deficient number, since it is larger than the sum of its proper divisors (1079927649).

2123214111 is a wasteful number, since it uses less digits than its factorization.

2123214111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9435 (or 9432 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 2123214111 is about 46078.3475289642. The cubic root of 2123214111 is about 1285.2805356808.

Adding to 2123214111 its reverse (1114123212), we get a palindrome (3237337323).

The spelling of 2123214111 in words is "two billion, one hundred twenty-three million, two hundred fourteen thousand, one hundred eleven".