211210211011050 has 144 divisors (see below), whose sum is σ = 581595234668448. Its totient is φ = 54923145379200.

The previous prime is 211210211011049. The next prime is 211210211011183. The reversal of 211210211011050 is 50110112012112.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2958405 + ... + 20764695.

Almost surely, 2^{211210211011050} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211210211011050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290797617334224).

211210211011050 is an abundant number, since it is smaller than the sum of its proper divisors (370385023657398).

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

211210211011050 is a wasteful number, since it uses less digits than its factorization.

211210211011050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17806965 (or 17806957 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 18.

Adding to 211210211011050 its reverse (50110112012112), we get a palindrome (261320323023162).

The spelling of 211210211011050 in words is "two hundred eleven trillion, two hundred ten billion, two hundred eleven million, eleven thousand, fifty".