210101021120 has 112 divisors (see below), whose sum is σ = 527714870400. Its totient is φ = 79453946880.

The previous prime is 210101021087. The next prime is 210101021147. The reversal of 210101021120 is 21120101012.

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, 2950091 + ... + 3020469.

Almost surely, 2^210101021120 is an apocalyptic number.

210101021120 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 210101021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263857435200).

210101021120 is an abundant number, since it is smaller than the sum of its proper divisors (317613849280).

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

210101021120 is a wasteful number, since it uses less digits than its factorization.

210101021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70906 (or 70896 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 210101021120 its reverse (21120101012), we get a palindrome (231221122132).

The spelling of 210101021120 in words is "two hundred ten billion, one hundred one million, twenty-one thousand, one hundred twenty".