10102202021 has 4 divisors (see below), whose sum is σ = 10196615232. Its totient is φ = 10007788812.

The previous prime is 10102201987. The next prime is 10102202029. The reversal of 10102202021 is 12020220101.

It is a happy number.

10102202021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12020220101 = 1063 ⋅11307827.

It is a cyclic number.

It is not a de Polignac number, because 10102202021 - 2⁶ = 10102201957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10102201993 and 10102202011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102202029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47206445 + ... + 47206658.

It is an arithmetic number, because the mean of its divisors is an integer number (2549153808).

Almost surely, 2^10102202021 is an apocalyptic number.

It is an amenable number.

10102202021 is a deficient number, since it is larger than the sum of its proper divisors (94413211).

10102202021 is an equidigital number, since it uses as much as digits as its factorization.

10102202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94413210.

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

Adding to 10102202021 its reverse (12020220101), we get a palindrome (22122422122).

The spelling of 10102202021 in words is "ten billion, one hundred two million, two hundred two thousand, twenty-one".