102021000212 has 12 divisors (see below), whose sum is σ = 178689223776. Its totient is φ = 50966936280.

The previous prime is 102021000209. The next prime is 102021000223. The reversal of 102021000212 is 212000120201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102021000193 and 102021000202.

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, 10885688 + ... + 10895055.

It is an arithmetic number, because the mean of its divisors is an integer number (14890768648).

Almost surely, 2^102021000212 is an apocalyptic number.

It is an amenable number.

102021000212 is a deficient number, since it is larger than the sum of its proper divisors (76668223564).

102021000212 is a wasteful number, since it uses less digits than its factorization.

102021000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21781918 (or 21781916 counting only the distinct ones).

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

Adding to 102021000212 its reverse (212000120201), we get a palindrome (314021120413).

The spelling of 102021000212 in words is "one hundred two billion, twenty-one million, two hundred twelve", and thus it is an aban number.