101012221110 has 128 divisors (see below), whose sum is σ = 268480396800. Its totient is φ = 24223380480.

The previous prime is 101012220949. The next prime is 101012221133. The reversal of 101012221110 is 11122210101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 806281 + ... + 923099.

It is an arithmetic number, because the mean of its divisors is an integer number (2097503100).

Almost surely, 2^101012221110 is an apocalyptic number.

101012221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 101012221110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134240198400).

101012221110 is an abundant number, since it is smaller than the sum of its proper divisors (167468175690).

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

101012221110 is a wasteful number, since it uses less digits than its factorization.

101012221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116926.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101012221110 its reverse (11122210101), we get a palindrome (112134431211).

The spelling of 101012221110 in words is "one hundred one billion, twelve million, two hundred twenty-one thousand, one hundred ten".