211421414 has 16 divisors (see below), whose sum is σ = 322423200. Its totient is φ = 103961664.

The previous prime is 211421387. The next prime is 211421437. The reversal of 211421414 is 414124112.

It is a congruent number.

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, 26327 + ... + 33405.

It is an arithmetic number, because the mean of its divisors is an integer number (20151450).

Almost surely, 2^211421414 is an apocalyptic number.

211421414 is a deficient number, since it is larger than the sum of its proper divisors (111001786).

211421414 is a wasteful number, since it uses less digits than its factorization.

211421414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7327.

The product of its digits is 256, while the sum is 20.

The square root of 211421414 is about 14540.3374788895. The cubic root of 211421414 is about 595.7302560710.

Adding to 211421414 its reverse (414124112), we get a palindrome (625545526).

The spelling of 211421414 in words is "two hundred eleven million, four hundred twenty-one thousand, four hundred fourteen".