211220252414 has 8 divisors (see below), whose sum is σ = 316838635320. Its totient is φ = 105607373976.

The previous prime is 211220252389. The next prime is 211220252417. The reversal of 211220252414 is 414252022112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×211220252414² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211220252417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1278809 + ... + 1434500.

It is an arithmetic number, because the mean of its divisors is an integer number (39604829415).

Almost surely, 2^211220252414 is an apocalyptic number.

211220252414 is a deficient number, since it is larger than the sum of its proper divisors (105618382906).

211220252414 is a wasteful number, since it uses less digits than its factorization.

211220252414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752234.

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 211220252414 its reverse (414252022112), we get a palindrome (625472274526).

The spelling of 211220252414 in words is "two hundred eleven billion, two hundred twenty million, two hundred fifty-two thousand, four hundred fourteen".