102021122212 has 24 divisors (see below), whose sum is σ = 189285706400. Its totient is φ = 47978122176.

The previous prime is 102021122209. The next prime is 102021122219. The reversal of 102021122212 is 212221120201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102021122219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4818153 + ... + 4839280.

Almost surely, 2^102021122212 is an apocalyptic number.

It is an amenable number.

102021122212 is a deficient number, since it is larger than the sum of its proper divisors (87264584188).

102021122212 is a wasteful number, since it uses less digits than its factorization.

102021122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9657595 (or 9657593 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102021122212 its reverse (212221120201), we get a palindrome (314242242413).

The spelling of 102021122212 in words is "one hundred two billion, twenty-one million, one hundred twenty-two thousand, two hundred twelve".