1010000331220 has 48 divisors (see below), whose sum is σ = 2178888093648. Its totient is φ = 393029795840.

The previous prime is 1010000331209. The next prime is 1010000331293. The reversal of 1010000331220 is 221330000101.

It can be written as a sum of positive squares in 8 ways, for example, as 14626967364 + 995373363856 = 120942^2 + 997684^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1010000331220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1455169 + ... + 2034088.

It is an arithmetic number, because the mean of its divisors is an integer number (45393501951).

Almost surely, 2^{1010000331220} is an apocalyptic number.

1010000331220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010000331220 is an abundant number, since it is smaller than the sum of its proper divisors (1168887762428).

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

1010000331220 is a wasteful number, since it uses less digits than its factorization.

1010000331220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3489660 (or 3489658 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 1010000331220 its reverse (221330000101), we get a palindrome (1231330331321).

The spelling of 1010000331220 in words is "one trillion, ten billion, three hundred thirty-one thousand, two hundred twenty".