10020001212021 has 8 divisors (see below), whose sum is σ = 13360182090400. Its totient is φ = 6679910570832.

The previous prime is 10020001211989. The next prime is 10020001212029. The reversal of 10020001212021 is 12021210002001.

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

It is not a de Polignac number, because 10020001212021 - 2⁵ = 10020001211989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10020001211988 and 10020001212006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020001212029) 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, 22299775 + ... + 22744668.

It is an arithmetic number, because the mean of its divisors is an integer number (1670022761300).

Almost surely, 2^{10020001212021} is an apocalyptic number.

It is an amenable number.

10020001212021 is a deficient number, since it is larger than the sum of its proper divisors (3340180878379).

10020001212021 is an equidigital number, since it uses as much as digits as its factorization.

10020001212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45118595.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10020001212021 its reverse (12021210002001), we get a palindrome (22041211214022).

The spelling of 10020001212021 in words is "ten trillion, twenty billion, one million, two hundred twelve thousand, twenty-one".