102212202021 has 16 divisors (see below), whose sum is σ = 137238226560. Its totient is φ = 67664786240.

The previous prime is 102212201999. The next prime is 102212202049. The reversal of 102212202021 is 120202212201.

It is a cyclic number.

It is not a de Polignac number, because 102212202021 - 2⁶ = 102212201957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102212202091) 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 15 ways as a sum of consecutive naturals, for example, 306160 + ... + 546038.

It is an arithmetic number, because the mean of its divisors is an integer number (8577389160).

Almost surely, 2^102212202021 is an apocalyptic number.

It is an amenable number.

102212202021 is a deficient number, since it is larger than the sum of its proper divisors (35026024539).

102212202021 is a wasteful number, since it uses less digits than its factorization.

102212202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240876.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 102212202021 its reverse (120202212201), we get a palindrome (222414414222).

The spelling of 102212202021 in words is "one hundred two billion, two hundred twelve million, two hundred two thousand, twenty-one".