10202121000001 has 16 divisors (see below), whose sum is σ = 11933970859008. Its totient is φ = 8538982981200.

The previous prime is 10202120999977. The next prime is 10202121000031. The reversal of 10202121000001 is 10000012120201.

It is not a de Polignac number, because 10202121000001 - 2⁹ = 10202120999489 is a prime.

It is a super-2 number, since 2×10202121000001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10202121000031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3511495 + ... + 5721436.

It is an arithmetic number, because the mean of its divisors is an integer number (745873178688).

Almost surely, 2^{10202121000001} is an apocalyptic number.

It is an amenable number.

10202121000001 is a deficient number, since it is larger than the sum of its proper divisors (1731849859007).

10202121000001 is an equidigital number, since it uses as much as digits as its factorization.

10202121000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9236652.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10202121000001 its reverse (10000012120201), we get a palindrome (20202133120202).

The spelling of 10202121000001 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, one", and thus it is an aban number.