202021100012 has 12 divisors (see below), whose sum is σ = 365727853680. Its totient is φ = 97527427536.

The previous prime is 202021100003. The next prime is 202021100053. The reversal of 202021100012 is 210001120202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 202021099966 and 202021100002.

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, 870780488 + ... + 870780719.

It is an arithmetic number, because the mean of its divisors is an integer number (30477321140).

Almost surely, 2^202021100012 is an apocalyptic number.

It is an amenable number.

202021100012 is a deficient number, since it is larger than the sum of its proper divisors (163706753668).

202021100012 is a wasteful number, since it uses less digits than its factorization.

202021100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741561240 (or 1741561238 counting only the distinct ones).

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

Adding to 202021100012 its reverse (210001120202), we get a palindrome (412022220214).

The spelling of 202021100012 in words is "two hundred two billion, twenty-one million, one hundred thousand, twelve".