211420201340 has 48 divisors (see below), whose sum is σ = 451358236224. Its totient is φ = 83163763200.

The previous prime is 211420201313. The next prime is 211420201351. The reversal of 211420201340 is 43102024112.

It is a super-2 number, since 2×211420201340² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 6592745 + ... + 6624735.

It is an arithmetic number, because the mean of its divisors is an integer number (9403296588).

Almost surely, 2^211420201340 is an apocalyptic number.

211420201340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211420201340 is an abundant number, since it is smaller than the sum of its proper divisors (239938034884).

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

211420201340 is a wasteful number, since it uses less digits than its factorization.

211420201340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37478 (or 37476 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 211420201340 its reverse (43102024112), we get a palindrome (254522225452).

The spelling of 211420201340 in words is "two hundred eleven billion, four hundred twenty million, two hundred one thousand, three hundred forty".