12202021012 has 6 divisors (see below), whose sum is σ = 21353536778. Its totient is φ = 6101010504.

The previous prime is 12202020979. The next prime is 12202021049. The reversal of 12202021012 is 21012020221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8007386256 + 4194634756 = 89484^2 + 64766^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12202020983 and 12202021001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1525252623 + ... + 1525252630.

Almost surely, 2^12202021012 is an apocalyptic number.

It is an amenable number.

12202021012 is a deficient number, since it is larger than the sum of its proper divisors (9151515766).

12202021012 is a wasteful number, since it uses less digits than its factorization.

12202021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3050505257 (or 3050505255 counting only the distinct ones).

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

Adding to 12202021012 its reverse (21012020221), we get a palindrome (33214041233).

The spelling of 12202021012 in words is "twelve billion, two hundred two million, twenty-one thousand, twelve".