211201420 has 48 divisors (see below), whose sum is σ = 452561760. Its totient is φ = 82773504.

The previous prime is 211201399. The next prime is 211201447. The reversal of 211201420 is 24102112.

It is a happy number.

211201420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 211201420.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370896 + ... + 371464.

It is an arithmetic number, because the mean of its divisors is an integer number (9428370).

Almost surely, 2^211201420 is an apocalyptic number.

211201420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211201420 is an abundant number, since it is smaller than the sum of its proper divisors (241360340).

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

211201420 is a wasteful number, since it uses less digits than its factorization.

211201420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922 (or 920 counting only the distinct ones).

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

The square root of 211201420 is about 14532.7705548529. The cubic root of 211201420 is about 595.5235558401.

Adding to 211201420 its reverse (24102112), we get a palindrome (235303532).

The spelling of 211201420 in words is "two hundred eleven million, two hundred one thousand, four hundred twenty".