20210211101080 has 256 divisors, whose sum is σ = 61429211827200. Its totient is φ = 5779051038720.

The previous prime is 20210211101029. The next prime is 20210211101081. The reversal of 20210211101080 is 8010111201202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210211101081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4978206 + ... + 8074834.

It is an arithmetic number, because the mean of its divisors is an integer number (239957858700).

Almost surely, 2^{20210211101080} is an apocalyptic number.

20210211101080 is a gapful number since it is divisible by the number (20) 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 20210211101080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30714605913600).

20210211101080 is an abundant number, since it is smaller than the sum of its proper divisors (41219000726120).

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

20210211101080 is a wasteful number, since it uses less digits than its factorization.

20210211101080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3096834 (or 3096830 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 20210211101080 its reverse (8010111201202), we get a palindrome (28220322302282).

The spelling of 20210211101080 in words is "twenty trillion, two hundred ten billion, two hundred eleven million, one hundred one thousand, eighty".