211010100156 has 18 divisors (see below), whose sum is σ = 533386642152. Its totient is φ = 70336700040.

The previous prime is 211010100137. The next prime is 211010100157. The reversal of 211010100156 is 651001010112.

It is a happy number.

211010100156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211010100157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2930695800 + ... + 2930695871.

Almost surely, 2^211010100156 is an apocalyptic number.

It is an amenable number.

211010100156 is an abundant number, since it is smaller than the sum of its proper divisors (322376541996).

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

211010100156 is a wasteful number, since it uses less digits than its factorization.

211010100156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5861391681 (or 5861391676 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 18.

Adding to 211010100156 its reverse (651001010112), we get a palindrome (862011110268).

The spelling of 211010100156 in words is "two hundred eleven billion, ten million, one hundred thousand, one hundred fifty-six".