1011002221012 has 36 divisors (see below), whose sum is σ = 2096943981300. Its totient is φ = 425111441664.

The previous prime is 1011002221003. The next prime is 1011002221043. The reversal of 1011002221012 is 2101222001101.

It can be written as a sum of positive squares in 2 ways, for example, as 453957927696 + 557044293316 = 673764^2 + 746354^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1011002220983 and 1011002221001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48651637 + ... + 48672412.

It is an arithmetic number, because the mean of its divisors is an integer number (58248443925).

Almost surely, 2^{1011002221012} is an apocalyptic number.

It is an amenable number.

1011002221012 is an abundant number, since it is smaller than the sum of its proper divisors (1085941760288).

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

1011002221012 is a wasteful number, since it uses less digits than its factorization.

1011002221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97324120 (or 97324111 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1011002221012 its reverse (2101222001101), we get a palindrome (3112224222113).

The spelling of 1011002221012 in words is "one trillion, eleven billion, two million, two hundred twenty-one thousand, twelve".