102033212021 has 4 divisors (see below), whose sum is σ = 109881920652. Its totient is φ = 94184503392.

The previous prime is 102033211993. The next prime is 102033212051. The reversal of 102033212021 is 120212330201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9465149521 + 92568062500 = 97289^2 + 304250^2 .

It is a cyclic number.

It is not a de Polignac number, because 102033212021 - 2¹⁸ = 102032949877 is a prime.

It is a super-3 number, since 3×102033212021³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102033212051) 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 3 ways as a sum of consecutive naturals, for example, 3924354296 + ... + 3924354321.

It is an arithmetic number, because the mean of its divisors is an integer number (27470480163).

Almost surely, 2^102033212021 is an apocalyptic number.

It is an amenable number.

102033212021 is a deficient number, since it is larger than the sum of its proper divisors (7848708631).

102033212021 is an equidigital number, since it uses as much as digits as its factorization.

102033212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7848708630.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 102033212021 its reverse (120212330201), we get a palindrome (222245542222).

The spelling of 102033212021 in words is "one hundred two billion, thirty-three million, two hundred twelve thousand, twenty-one".