211010022 has 48 divisors (see below), whose sum is σ = 475609680. Its totient is φ = 70116192.

The previous prime is 211009999. The next prime is 211010047. The reversal of 211010022 is 220010112.

211010022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 211009986 and 211010013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 246948 + ... + 247800.

It is an arithmetic number, because the mean of its divisors is an integer number (9908535).

Almost surely, 2^211010022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211010022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237804840).

211010022 is an abundant number, since it is smaller than the sum of its proper divisors (264599658).

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

211010022 is an equidigital number, since it uses as much as digits as its factorization.

211010022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379 (or 1367 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 211010022 is about 14526.1840137044. The cubic root of 211010022 is about 595.3436068190.

Adding to 211010022 its reverse (220010112), we get a palindrome (431020134).

The spelling of 211010022 in words is "two hundred eleven million, ten thousand, twenty-two".