211230203112 has 64 divisors (see below), whose sum is σ = 586791576000. Its totient is φ = 70405146432.

The previous prime is 211230203101. The next prime is 211230203117. The reversal of 211230203112 is 211302032112.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (211230203117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4380043 + ... + 4428005.

It is an arithmetic number, because the mean of its divisors is an integer number (9168618375).

Almost surely, 2^211230203112 is an apocalyptic number.

It is an amenable number.

211230203112 is an abundant number, since it is smaller than the sum of its proper divisors (375561372888).

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

211230203112 is a wasteful number, since it uses less digits than its factorization.

211230203112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68367 (or 68357 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 211230203112 its reverse (211302032112), we get a palindrome (422532235224).

The spelling of 211230203112 in words is "two hundred eleven billion, two hundred thirty million, two hundred three thousand, one hundred twelve".