10100011020021 has 32 divisors (see below), whose sum is σ = 16115433152000. Its totient is φ = 6214830007104.

The previous prime is 10100011020019. The next prime is 10100011020079. The reversal of 10100011020021 is 12002011000101.

It is a happy number.

It is not a de Polignac number, because 10100011020021 - 2¹ = 10100011020019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10100011019985 and 10100011020012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10100011020521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2608815 + ... + 5196723.

It is an arithmetic number, because the mean of its divisors is an integer number (503607286000).

Almost surely, 2^{10100011020021} is an apocalyptic number.

It is an amenable number.

10100011020021 is a deficient number, since it is larger than the sum of its proper divisors (6015422131979).

10100011020021 is a wasteful number, since it uses less digits than its factorization.

10100011020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599050 (or 2599044 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10100011020021 its reverse (12002011000101), we get a palindrome (22102022020122).

The spelling of 10100011020021 in words is "ten trillion, one hundred billion, eleven million, twenty thousand, twenty-one".