10020021022001 has 8 divisors (see below), whose sum is σ = 10292917018920. Its totient is φ = 9747234741888.

The previous prime is 10020021021973. The next prime is 10020021022009. The reversal of 10020021022001 is 10022012002001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1768328146225 + 8251692875776 = 1329785^2 + 2872576^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10020021022001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10020021022009) 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, 27244046 + ... + 27609383.

It is an arithmetic number, because the mean of its divisors is an integer number (1286614627365).

Almost surely, 2^{10020021022001} is an apocalyptic number.

It is an amenable number.

10020021022001 is a deficient number, since it is larger than the sum of its proper divisors (272895996919).

10020021022001 is an equidigital number, since it uses as much as digits as its factorization.

10020021022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54858403.

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

Adding to 10020021022001 its reverse (10022012002001), we get a palindrome (20042033024002).

The spelling of 10020021022001 in words is "ten trillion, twenty billion, twenty-one million, twenty-two thousand, one".