211210140020 has 24 divisors (see below), whose sum is σ = 483863230368. Its totient is φ = 76803687200.

The previous prime is 211210140019. The next prime is 211210140047. The reversal of 211210140020 is 20041012112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 211210139977 and 211210140004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480022826 + ... + 480023265.

It is an arithmetic number, because the mean of its divisors is an integer number (20160967932).

Almost surely, 2^211210140020 is an apocalyptic number.

211210140020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211210140020 is an abundant number, since it is smaller than the sum of its proper divisors (272653090348).

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

211210140020 is a wasteful number, since it uses less digits than its factorization.

211210140020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960046111 (or 960046109 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 211210140020 its reverse (20041012112), we get a palindrome (231251152132).

The spelling of 211210140020 in words is "two hundred eleven billion, two hundred ten million, one hundred forty thousand, twenty".