1012213320100 has 18 divisors (see below), whose sum is σ = 2196502904834. Its totient is φ = 404885328000.

The previous prime is 1012213320089. The next prime is 1012213320103. The reversal of 1012213320100 is 10233122101.

It can be written as a sum of positive squares in 3 ways, for example, as 68222305636 + 943991014464 = 261194^2 + 971592^2 .

It is not an unprimeable number, because it can be changed into a prime (1012213320103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5061066501 + ... + 5061066700.

Almost surely, 2^{1012213320100} is an apocalyptic number.

1012213320100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012213320100 is an abundant number, since it is smaller than the sum of its proper divisors (1184289584734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1012213320100 is a wasteful number, since it uses less digits than its factorization.

1012213320100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10122133215 (or 10122133208 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1012213320100 its reverse (10233122101), we get a palindrome (1022446442201).

The spelling of 1012213320100 in words is "one trillion, twelve billion, two hundred thirteen million, three hundred twenty thousand, one hundred".