102221212210212 has 24 divisors (see below), whose sum is σ = 239067007475296. Its totient is φ = 33995045167488.

The previous prime is 102221212210193. The next prime is 102221212210259. The reversal of 102221212210212 is 212012212122201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9836524078 + ... + 9836534469.

Almost surely, 2^{102221212210212} is an apocalyptic number.

102221212210212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102221212210212 is an abundant number, since it is smaller than the sum of its proper divisors (136845795265084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102221212210212 is a wasteful number, since it uses less digits than its factorization.

102221212210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19673058987 (or 19673058985 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 102221212210212 its reverse (212012212122201), we get a palindrome (314233424332413).

The spelling of 102221212210212 in words is "one hundred two trillion, two hundred twenty-one billion, two hundred twelve million, two hundred ten thousand, two hundred twelve".