10021111011020 has 48 divisors (see below), whose sum is σ = 22287055004928. Its totient is φ = 3776937869760.

The previous prime is 10021111011017. The next prime is 10021111011071. The reversal of 10021111011020 is 2011011112001.

It is a super-2 number, since 2×10021111011020² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10021111010992 and 10021111011010.

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, 162543986 + ... + 162605625.

It is an arithmetic number, because the mean of its divisors is an integer number (464313645936).

Almost surely, 2^{10021111011020} is an apocalyptic number.

10021111011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10021111011020 is an abundant number, since it is smaller than the sum of its proper divisors (12265943993908).

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

10021111011020 is a wasteful number, since it uses less digits than its factorization.

10021111011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325149710 (or 325149708 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10021111011020 its reverse (2011011112001), we get a palindrome (12032122123021).

The spelling of 10021111011020 in words is "ten trillion, twenty-one billion, one hundred eleven million, eleven thousand, twenty".