102021200012 has 12 divisors (see below), whose sum is σ = 184296361536. Its totient is φ = 49365096720.

The previous prime is 102021200011. The next prime is 102021200051. The reversal of 102021200012 is 210002120201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102021199966 and 102021200002.

It is not an unprimeable number, because it can be changed into a prime (102021200011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411375683 + ... + 411375930.

It is an arithmetic number, because the mean of its divisors is an integer number (15358030128).

Almost surely, 2^102021200012 is an apocalyptic number.

It is an amenable number.

102021200012 is a deficient number, since it is larger than the sum of its proper divisors (82275161524).

102021200012 is a wasteful number, since it uses less digits than its factorization.

102021200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822751648 (or 822751646 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 102021200012 its reverse (210002120201), we get a palindrome (312023320213).

The spelling of 102021200012 in words is "one hundred two billion, twenty-one million, two hundred thousand, twelve".