1010021201012 has 6 divisors (see below), whose sum is σ = 1767537101778. Its totient is φ = 505010600504.

The previous prime is 1010021201009. The next prime is 1010021201017. The reversal of 1010021201012 is 2101021200101.

It can be written as a sum of positive squares in only one way, i.e., 976985957476 + 33035243536 = 988426^2 + 181756^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1010021200984 and 1010021201002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010021201017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126252650123 + ... + 126252650130.

It is an arithmetic number, because the mean of its divisors is an integer number (294589516963).

Almost surely, 2^{1010021201012} is an apocalyptic number.

It is an amenable number.

1010021201012 is a deficient number, since it is larger than the sum of its proper divisors (757515900766).

1010021201012 is a wasteful number, since it uses less digits than its factorization.

1010021201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252505300257 (or 252505300255 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1010021201012 its reverse (2101021200101), we get a palindrome (3111042401113).

The spelling of 1010021201012 in words is "one trillion, ten billion, twenty-one million, two hundred one thousand, twelve".