211402212 has 48 divisors (see below), whose sum is σ = 565297152. Its totient is φ = 60233760.

The previous prime is 211402211. The next prime is 211402229. The reversal of 211402212 is 212204112.

211402212 is digitally balanced in base 3, 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 = 211402191 and 211402200.

It is not an unprimeable number, because it can be changed into a prime (211402211) 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, 28887 + ... + 35457.

It is an arithmetic number, because the mean of its divisors is an integer number (11777024).

Almost surely, 2^211402212 is an apocalyptic number.

It is an amenable number.

211402212 is an abundant number, since it is smaller than the sum of its proper divisors (353894940).

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

211402212 is a wasteful number, since it uses less digits than its factorization.

211402212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6968 (or 6966 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 211402212 is about 14539.6771628534. The cubic root of 211402212 is about 595.7122201201.

Adding to 211402212 its reverse (212204112), we get a palindrome (423606324).

The spelling of 211402212 in words is "two hundred eleven million, four hundred two thousand, two hundred twelve".