10020111010021 has 24 divisors (see below), whose sum is σ = 11723941944000. Its totient is φ = 8538661845504.

The previous prime is 10020111010009. The next prime is 10020111010057. The reversal of 10020111010021 is 12001011102001.

It is not a de Polignac number, because 10020111010021 - 2¹³ = 10020111001829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020111010081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37485640 + ... + 37751998.

It is an arithmetic number, because the mean of its divisors is an integer number (488497581000).

Almost surely, 2^{10020111010021} is an apocalyptic number.

It is an amenable number.

10020111010021 is a deficient number, since it is larger than the sum of its proper divisors (1703830933979).

10020111010021 is a wasteful number, since it uses less digits than its factorization.

10020111010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270841 (or 270834 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10020111010021 its reverse (12001011102001), we get a palindrome (22021122112022).

The spelling of 10020111010021 in words is "ten trillion, twenty billion, one hundred eleven million, ten thousand, twenty-one".