102001220212 has 24 divisors (see below), whose sum is σ = 180687804192. Its totient is φ = 50376372000.

The previous prime is 102001220207. The next prime is 102001220213. The reversal of 102001220212 is 212022100201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102001220192 and 102001220201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102001220213) 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, 1865787 + ... + 1919677.

It is an arithmetic number, because the mean of its divisors is an integer number (7528658508).

Almost surely, 2^102001220212 is an apocalyptic number.

It is an amenable number.

102001220212 is a deficient number, since it is larger than the sum of its proper divisors (78686583980).

102001220212 is a wasteful number, since it uses less digits than its factorization.

102001220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59679 (or 59677 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102001220212 its reverse (212022100201), we get a palindrome (314023320413).

The spelling of 102001220212 in words is "one hundred two billion, one million, two hundred twenty thousand, two hundred twelve".