10202122021012 has 6 divisors (see below), whose sum is σ = 17853713536778. Its totient is φ = 5101061010504.

The previous prime is 10202122021009. The next prime is 10202122021099. The reversal of 10202122021012 is 21012022120201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9736184721796 + 465937299216 = 3120286^2 + 682596^2 .

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, 1275265252623 + ... + 1275265252630.

Almost surely, 2^{10202122021012} is an apocalyptic number.

It is an amenable number.

10202122021012 is a deficient number, since it is larger than the sum of its proper divisors (7651591515766).

10202122021012 is a wasteful number, since it uses less digits than its factorization.

10202122021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2550530505257 (or 2550530505255 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10202122021012 its reverse (21012022120201), we get a palindrome (31214144141213).

The spelling of 10202122021012 in words is "ten trillion, two hundred two billion, one hundred twenty-two million, twenty-one thousand, twelve".