10021112221020 has 48 divisors (see below), whose sum is σ = 28124216644608. Its totient is φ = 2666096361280.

The previous prime is 10021112220991. The next prime is 10021112221031. The reversal of 10021112221020 is 2012221112001.

10021112221020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 193731144 + ... + 193782863.

It is an arithmetic number, because the mean of its divisors is an integer number (585921180096).

Almost surely, 2^{10021112221020} is an apocalyptic number.

10021112221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10021112221020 is an abundant number, since it is smaller than the sum of its proper divisors (18103104423588).

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

10021112221020 is a wasteful number, since it uses less digits than its factorization.

10021112221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387514450 (or 387514448 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10021112221020 its reverse (2012221112001), we get a palindrome (12033333333021).

The spelling of 10021112221020 in words is "ten trillion, twenty-one billion, one hundred twelve million, two hundred twenty-one thousand, twenty".