211011011010020 has 96 divisors (see below), whose sum is σ = 477563904397440. Its totient is φ = 77853910809600.

The previous prime is 211011011010013. The next prime is 211011011010029. The reversal of 211011011010020 is 20010110110112.

It is a junction number, because it is equal to n+sod(n) for n = 211011011009983 and 211011011010010.

It is not an unprimeable number, because it can be changed into a prime (211011011010029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4121041739 + ... + 4121092941.

It is an arithmetic number, because the mean of its divisors is an integer number (4974624004140).

Almost surely, 2^{211011011010020} is an apocalyptic number.

211011011010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211011011010020 is an abundant number, since it is smaller than the sum of its proper divisors (266552893387420).

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

211011011010020 is a wasteful number, since it uses less digits than its factorization.

211011011010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62685 (or 62683 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 211011011010020 its reverse (20010110110112), we get a palindrome (231021121120132).

The spelling of 211011011010020 in words is "two hundred eleven trillion, eleven billion, eleven million, ten thousand, twenty".