102022221212 has 12 divisors (see below), whose sum is σ = 184695400680. Its totient is φ = 49252106736.

The previous prime is 102022221209. The next prime is 102022221239. The reversal of 102022221212 is 212122220201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439750838 + ... + 439751069.

It is an arithmetic number, because the mean of its divisors is an integer number (15391283390).

Almost surely, 2^102022221212 is an apocalyptic number.

It is an amenable number.

102022221212 is a deficient number, since it is larger than the sum of its proper divisors (82673179468).

102022221212 is a wasteful number, since it uses less digits than its factorization.

102022221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879501940 (or 879501938 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 102022221212 its reverse (212122220201), we get a palindrome (314144441413).

The spelling of 102022221212 in words is "one hundred two billion, twenty-two million, two hundred twenty-one thousand, two hundred twelve".