10102001120021 has 8 divisors (see below), whose sum is σ = 10447531461120. Its totient is φ = 9761912201808.

The previous prime is 10102001119999. The next prime is 10102001120041. The reversal of 10102001120021 is 12002110020101.

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-10102001120021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10102001119984 and 10102001120011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102001120041) 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, 1360351946 + ... + 1360359371.

It is an arithmetic number, because the mean of its divisors is an integer number (1305941432640).

Almost surely, 2^{10102001120021} is an apocalyptic number.

It is an amenable number.

10102001120021 is a deficient number, since it is larger than the sum of its proper divisors (345530341099).

10102001120021 is an equidigital number, since it uses as much as digits as its factorization.

10102001120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2720711443.

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

Adding to 10102001120021 its reverse (12002110020101), we get a palindrome (22104111140122).

The spelling of 10102001120021 in words is "ten trillion, one hundred two billion, one million, one hundred twenty thousand, twenty-one".