101112221020 has 24 divisors (see below), whose sum is σ = 212452216704. Its totient is φ = 40422687936.

The previous prime is 101112221011. The next prime is 101112221027. The reversal of 101112221020 is 20122211101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101112221027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1350159 + ... + 1423078.

It is an arithmetic number, because the mean of its divisors is an integer number (8852175696).

Almost surely, 2^101112221020 is an apocalyptic number.

101112221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101112221020 is an abundant number, since it is smaller than the sum of its proper divisors (111339995684).

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

101112221020 is a wasteful number, since it uses less digits than its factorization.

101112221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775069 (or 2775067 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101112221020 its reverse (20122211101), we get a palindrome (121234432121).

The spelling of 101112221020 in words is "one hundred one billion, one hundred twelve million, two hundred twenty-one thousand, twenty".