10102201100021 has 8 divisors (see below), whose sum is σ = 10455282812184. Its totient is φ = 9754199700480.

The previous prime is 10102201099997. The next prime is 10102201100023. The reversal of 10102201100021 is 12000110220101.

It can be written as a sum of positive squares in 4 ways, for example, as 283065497521 + 9819135602500 = 532039^2 + 3133550^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10102201100021 - 2³⁰ = 10101127358197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10102201099975 and 10102201100011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102201100023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1270074110 + ... + 1270082063.

It is an arithmetic number, because the mean of its divisors is an integer number (1306910351523).

Almost surely, 2^{10102201100021} is an apocalyptic number.

It is an amenable number.

10102201100021 is a deficient number, since it is larger than the sum of its proper divisors (353081712163).

10102201100021 is an equidigital number, since it uses as much as digits as its factorization.

10102201100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540156311.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10102201100021 its reverse (12000110220101), we get a palindrome (22102311320122).

The spelling of 10102201100021 in words is "ten trillion, one hundred two billion, two hundred one million, one hundred thousand, twenty-one".