210021212201212 has 48 divisors (see below), whose sum is σ = 371081258100000. Its totient is φ = 104004237164544.

The previous prime is 210021212201197. The next prime is 210021212201309. The reversal of 210021212201212 is 212102212120012.

It is a self number, because there is not a number n which added to its sum of digits gives 210021212201212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137228464 + ... + 138750472.

It is an arithmetic number, because the mean of its divisors is an integer number (7730859543750).

Almost surely, 2^{210021212201212} is an apocalyptic number.

It is an amenable number.

210021212201212 is a deficient number, since it is larger than the sum of its proper divisors (161060045898788).

210021212201212 is a wasteful number, since it uses less digits than its factorization.

210021212201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523038 (or 1523036 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 210021212201212 its reverse (212102212120012), we get a palindrome (422123424321224).

The spelling of 210021212201212 in words is "two hundred ten trillion, twenty-one billion, two hundred twelve million, two hundred one thousand, two hundred twelve".