10210002021 has 8 divisors (see below), whose sum is σ = 15125928960. Its totient is φ = 6806667996.

The previous prime is 10210002007. The next prime is 10210002043. The reversal of 10210002021 is 12020001201.

It is not a de Polignac number, because 10210002021 - 2¹⁷ = 10209870949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10210001994 and 10210002012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10210002221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189074085 + ... + 189074138.

It is an arithmetic number, because the mean of its divisors is an integer number (1890741120).

Almost surely, 2^10210002021 is an apocalyptic number.

It is an amenable number.

10210002021 is a deficient number, since it is larger than the sum of its proper divisors (4915926939).

10210002021 is an equidigital number, since it uses as much as digits as its factorization.

10210002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378148232 (or 378148226 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10210002021 its reverse (12020001201), we get a palindrome (22230003222).

The spelling of 10210002021 in words is "ten billion, two hundred ten million, two thousand, twenty-one".