1011001021012 has 6 divisors (see below), whose sum is σ = 1769251786778. Its totient is φ = 505500510504.

The previous prime is 1011001021001. The next prime is 1011001021067. The reversal of 1011001021012 is 2101201001101.

1011001021012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 986513778756 + 24487242256 = 993234^2 + 156484^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1011001021012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126375127623 + ... + 126375127630.

Almost surely, 2^{1011001021012} is an apocalyptic number.

It is an amenable number.

1011001021012 is a deficient number, since it is larger than the sum of its proper divisors (758250765766).

1011001021012 is a wasteful number, since it uses less digits than its factorization.

1011001021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252750255257 (or 252750255255 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1011001021012 its reverse (2101201001101), we get a palindrome (3112202022113).

The spelling of 1011001021012 in words is "one trillion, eleven billion, one million, twenty-one thousand, twelve".