211020422 has 16 divisors (see below), whose sum is σ = 352790640. Its totient is φ = 94076928.

The previous prime is 211020413. The next prime is 211020427. The reversal of 211020422 is 224020112.

211020422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 211020397 and 211020406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211020427) 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, 162683 + ... + 163974.

It is an arithmetic number, because the mean of its divisors is an integer number (22049415).

Almost surely, 2^211020422 is an apocalyptic number.

211020422 is a deficient number, since it is larger than the sum of its proper divisors (141770218).

211020422 is a wasteful number, since it uses less digits than its factorization.

211020422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326695.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 211020422 is about 14526.5419835555. The cubic root of 211020422 is about 595.3533875105.

Adding to 211020422 its reverse (224020112), we get a palindrome (435040534).

The spelling of 211020422 in words is "two hundred eleven million, twenty thousand, four hundred twenty-two".