1021220010196 has 12 divisors (see below), whose sum is σ = 1787159183040. Its totient is φ = 510603100760.

The previous prime is 1021220010179. The next prime is 1021220010197. The reversal of 1021220010196 is 6910100221201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021220010196.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021220010197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385836 + ... + 1990723.

It is an arithmetic number, because the mean of its divisors is an integer number (148929931920).

Almost surely, 2^{1021220010196} is an apocalyptic number.

It is an amenable number.

1021220010196 is a deficient number, since it is larger than the sum of its proper divisors (765939172844).

1021220010196 is a wasteful number, since it uses less digits than its factorization.

1021220010196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3452174 (or 3452172 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 25.

Adding to 1021220010196 its reverse (6910100221201), we get a palindrome (7931320231397).

The spelling of 1021220010196 in words is "one trillion, twenty-one billion, two hundred twenty million, ten thousand, one hundred ninety-six".