1020202020196 has 6 divisors (see below), whose sum is σ = 1785353535350. Its totient is φ = 510101010096.

The previous prime is 1020202020169. The next prime is 1020202020199. The reversal of 1020202020196 is 6910202020201.

It can be written as a sum of positive squares in only one way, i.e., 886987240000 + 133214780196 = 941800^2 + 364986^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1020202020196.

It is not an unprimeable number, because it can be changed into a prime (1020202020199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127525252521 + ... + 127525252528.

Almost surely, 2^{1020202020196} is an apocalyptic number.

It is an amenable number.

1020202020196 is a deficient number, since it is larger than the sum of its proper divisors (765151515154).

1020202020196 is a wasteful number, since it uses less digits than its factorization.

1020202020196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255050505053 (or 255050505051 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 1020202020196 its reverse (6910202020201), we get a palindrome (7930404040397).

The spelling of 1020202020196 in words is "one trillion, twenty billion, two hundred two million, twenty thousand, one hundred ninety-six".