1021012122012 has 48 divisors (see below), whose sum is σ = 2385172645632. Its totient is φ = 339935973760.

The previous prime is 1021012121971. The next prime is 1021012122049. The reversal of 1021012122012 is 2102212101201.

1021012122012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1021012121982 and 1021012122000.

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, 64113883 + ... + 64129805.

It is an arithmetic number, because the mean of its divisors is an integer number (49691096784).

Almost surely, 2^{1021012122012} is an apocalyptic number.

1021012122012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021012122012 is an abundant number, since it is smaller than the sum of its proper divisors (1364160523620).

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

1021012122012 is a wasteful number, since it uses less digits than its factorization.

1021012122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21898 (or 21896 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1021012122012 its reverse (2102212101201), we get a palindrome (3123224223213).

The spelling of 1021012122012 in words is "one trillion, twenty-one billion, twelve million, one hundred twenty-two thousand, twelve".