211120242420 has 24 divisors (see below), whose sum is σ = 591136678944. Its totient is φ = 56298731296.

The previous prime is 211120242409. The next prime is 211120242427. The reversal of 211120242420 is 24242021112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211120242427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1759335294 + ... + 1759335413.

It is an arithmetic number, because the mean of its divisors is an integer number (24630694956).

Almost surely, 2^211120242420 is an apocalyptic number.

211120242420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211120242420 is an abundant number, since it is smaller than the sum of its proper divisors (380016436524).

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

211120242420 is a wasteful number, since it uses less digits than its factorization.

211120242420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3518670719 (or 3518670717 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 211120242420 its reverse (24242021112), we get a palindrome (235362263532).

The spelling of 211120242420 in words is "two hundred eleven billion, one hundred twenty million, two hundred forty-two thousand, four hundred twenty".