211223133006 has 16 divisors (see below), whose sum is σ = 422451053904. Its totient is φ = 70406913024.

The previous prime is 211223132999. The next prime is 211223133013. The reversal of 211223133006 is 600331322112.

It is an interprime number because it is at equal distance from previous prime (211223132999) and next prime (211223133013).

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, 656640 + ... + 923916.

It is an arithmetic number, because the mean of its divisors is an integer number (26403190869).

Almost surely, 2^211223133006 is an apocalyptic number.

211223133006 is an abundant number, since it is smaller than the sum of its proper divisors (211227920898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211223133006 is a wasteful number, since it uses less digits than its factorization.

211223133006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398995.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 211223133006 its reverse (600331322112), we get a palindrome (811554455118).

The spelling of 211223133006 in words is "two hundred eleven billion, two hundred twenty-three million, one hundred thirty-three thousand, six".