10111200021021 has 32 divisors (see below), whose sum is σ = 15507637286400. Its totient is φ = 5795583410880.

The previous prime is 10111200021007. The next prime is 10111200021023. The reversal of 10111200021021 is 12012000211101.

It is not a de Polignac number, because 10111200021021 - 2⁵ = 10111200020989 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10111200020988 and 10111200021006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111200021023) 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, 13368166 + ... + 14104263.

It is an arithmetic number, because the mean of its divisors is an integer number (484613665200).

Almost surely, 2^{10111200021021} is an apocalyptic number.

10111200021021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10111200021021 is a deficient number, since it is larger than the sum of its proper divisors (5396437265379).

10111200021021 is a wasteful number, since it uses less digits than its factorization.

10111200021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27473049.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10111200021021 its reverse (12012000211101), we get a palindrome (22123200232122).

The spelling of 10111200021021 in words is "ten trillion, one hundred eleven billion, two hundred million, twenty-one thousand, twenty-one".