10020120002021 has 8 divisors (see below), whose sum is σ = 10264719018624. Its totient is φ = 9775530787680.

The previous prime is 10020120002017. The next prime is 10020120002041. The reversal of 10020120002021 is 12020002102001.

It is a happy number.

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 10020120002021 - 2² = 10020120002017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10020120001993 and 10020120002011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020120002041) 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, 359651 + ... + 4491056.

It is an arithmetic number, because the mean of its divisors is an integer number (1283089877328).

Almost surely, 2^{10020120002021} is an apocalyptic number.

It is an amenable number.

10020120002021 is a deficient number, since it is larger than the sum of its proper divisors (244599016603).

10020120002021 is an equidigital number, since it uses as much as digits as its factorization.

10020120002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4901131.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10020120002021 its reverse (12020002102001), we get a palindrome (22040122104022).

The spelling of 10020120002021 in words is "ten trillion, twenty billion, one hundred twenty million, two thousand, twenty-one".