1011000120012 has 72 divisors (see below), whose sum is σ = 2572038037296. Its totient is φ = 334831480704.

The previous prime is 1011000119963. The next prime is 1011000120017. The reversal of 1011000120012 is 2100210001101.

It is a happy number.

1011000120012 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1011000119976 and 1011000120003.

It is not an unprimeable number, because it can be changed into a prime (1011000120017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20848258 + ... + 20896694.

It is an arithmetic number, because the mean of its divisors is an integer number (35722750518).

Almost surely, 2^{1011000120012} is an apocalyptic number.

1011000120012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1011000120012 is an abundant number, since it is smaller than the sum of its proper divisors (1561037917284).

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

1011000120012 is a wasteful number, since it uses less digits than its factorization.

1011000120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52167 (or 52162 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1011000120012 its reverse (2100210001101), we get a palindrome (3111210121113).

The spelling of 1011000120012 in words is "one trillion, eleven billion, one hundred twenty thousand, twelve".