211210001231 has 8 divisors (see below), whose sum is σ = 213370556400. Its totient is φ = 209050806400.

The previous prime is 211210001173. The next prime is 211210001251. The reversal of 211210001231 is 132100012112.

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 211210001231 - 2²² = 211205806927 is a prime.

It is a super-2 number, since 2×211210001231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211210001251) 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, 26501 + ... + 650478.

It is an arithmetic number, because the mean of its divisors is an integer number (26671319550).

Almost surely, 2^211210001231 is an apocalyptic number.

211210001231 is a deficient number, since it is larger than the sum of its proper divisors (2160555169).

211210001231 is a wasteful number, since it uses less digits than its factorization.

211210001231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680169.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 211210001231 its reverse (132100012112), we get a palindrome (343310013343).

The spelling of 211210001231 in words is "two hundred eleven billion, two hundred ten million, one thousand, two hundred thirty-one".