102210021021 has 8 divisors (see below), whose sum is σ = 136281585024. Its totient is φ = 68139235520.

The previous prime is 102210021013. The next prime is 102210021061. The reversal of 102210021021 is 120120012201.

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 102210021021 - 2³ = 102210021013 is a prime.

It is a super-3 number, since 3×102210021021³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 102210020988 and 102210021006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102210021061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270565 + ... + 526901.

It is an arithmetic number, because the mean of its divisors is an integer number (17035198128).

Almost surely, 2^102210021021 is an apocalyptic number.

It is an amenable number.

102210021021 is a deficient number, since it is larger than the sum of its proper divisors (34071564003).

102210021021 is a wasteful number, since it uses less digits than its factorization.

102210021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389251.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102210021021 its reverse (120120012201), we get a palindrome (222330033222).

The spelling of 102210021021 in words is "one hundred two billion, two hundred ten million, twenty-one thousand, twenty-one".