211420012 has 24 divisors (see below), whose sum is σ = 373086000. Its totient is φ = 104828736.

The previous prime is 211420009. The next prime is 211420043. The reversal of 211420012 is 210024112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 211419974 and 211420001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375243 + ... + 375805.

It is an arithmetic number, because the mean of its divisors is an integer number (15545250).

Almost surely, 2^211420012 is an apocalyptic number.

It is an amenable number.

211420012 is a deficient number, since it is larger than the sum of its proper divisors (161665988).

211420012 is a wasteful number, since it uses less digits than its factorization.

211420012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185 (or 1183 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 211420012 is about 14540.2892680992. The cubic root of 211420012 is about 595.7289392450.

Adding to 211420012 its reverse (210024112), we get a palindrome (421444124).

The spelling of 211420012 in words is "two hundred eleven million, four hundred twenty thousand, twelve".