2123213206 has 16 divisors (see below), whose sum is σ = 3226330800. Its totient is φ = 1047794688.

The previous prime is 2123213177. The next prime is 2123213227. The reversal of 2123213206 is 6023123212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181750 + ... + 193078.

It is an arithmetic number, because the mean of its divisors is an integer number (201645675).

Almost surely, 2^2123213206 is an apocalyptic number.

2123213206 is a deficient number, since it is larger than the sum of its proper divisors (1103117594).

2123213206 is a wasteful number, since it uses less digits than its factorization.

2123213206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12543.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2123213206 is about 46078.3377087325. The cubic root of 2123213206 is about 1285.2803530678.

Adding to 2123213206 its reverse (6023123212), we get a palindrome (8146336418).

The spelling of 2123213206 in words is "two billion, one hundred twenty-three million, two hundred thirteen thousand, two hundred six".