1021011020012 has 12 divisors (see below), whose sum is σ = 1800408746136. Its totient is φ = 506608521120.

The previous prime is 1021011019993. The next prime is 1021011020119. The reversal of 1021011020012 is 2100201101201.

It is a junction number, because it is equal to n+sod(n) for n = 1021011019975 and 1021011020002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 974246633 + ... + 974247680.

It is an arithmetic number, because the mean of its divisors is an integer number (150034062178).

Almost surely, 2^{1021011020012} is an apocalyptic number.

It is an amenable number.

1021011020012 is a deficient number, since it is larger than the sum of its proper divisors (779397726124).

1021011020012 is a wasteful number, since it uses less digits than its factorization.

1021011020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948494448 (or 1948494446 counting only the distinct ones).

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

Adding to 1021011020012 its reverse (2100201101201), we get a palindrome (3121212121213).

The spelling of 1021011020012 in words is "one trillion, twenty-one billion, eleven million, twenty thousand, twelve".