211120020020020 has 48 divisors (see below), whose sum is σ = 469469104892928. Its totient is φ = 79474123676160.

The previous prime is 211120020019943. The next prime is 211120020020053. The reversal of 211120020020020 is 20020020021112.

It is a happy number.

211120020020020 is a modest number, since divided by 20020020 gives 211120 as remainder.

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, 20562072 + ... + 29069551.

It is an arithmetic number, because the mean of its divisors is an integer number (9780606351936).

Almost surely, 2^{211120020020020} is an apocalyptic number.

211120020020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211120020020020 is an abundant number, since it is smaller than the sum of its proper divisors (258349084872908).

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

211120020020020 is a wasteful number, since it uses less digits than its factorization.

211120020020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49644160 (or 49644158 counting only the distinct ones).

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

Adding to 211120020020020 its reverse (20020020021112), we get a palindrome (231140040041132).

The spelling of 211120020020020 in words is "two hundred eleven trillion, one hundred twenty billion, twenty million, twenty thousand, twenty".