10211000000020 has 96 divisors (see below), whose sum is σ = 22411323648000. Its totient is φ = 3900550494720.

The previous prime is 10210999999987. The next prime is 10211000000051. The reversal of 10211000000020 is 2000000011201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1776132106 + ... + 1776137854.

It is an arithmetic number, because the mean of its divisors is an integer number (233451288000).

Almost surely, 2^{10211000000020} is an apocalyptic number.

10211000000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10211000000020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11205661824000).

10211000000020 is an abundant number, since it is smaller than the sum of its proper divisors (12200323647980).

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

10211000000020 is a wasteful number, since it uses less digits than its factorization.

10211000000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11305 (or 11303 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 10211000000020 its reverse (2000000011201), we get a palindrome (12211000011221).

The spelling of 10211000000020 in words is "ten trillion, two hundred eleven billion, twenty", and thus it is an aban number.