1011021213012 has 24 divisors (see below), whose sum is σ = 2461616867136. Its totient is φ = 322354589568.

The previous prime is 1011021213011. The next prime is 1011021213043. The reversal of 1011021213012 is 2103121201101.

It is a super-2 number, since 2×1011021213012² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1011021212982 and 1011021213000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011021213011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1831559893 + ... + 1831560444.

It is an arithmetic number, because the mean of its divisors is an integer number (102567369464).

Almost surely, 2^{1011021213012} is an apocalyptic number.

1011021213012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1011021213012 is an abundant number, since it is smaller than the sum of its proper divisors (1450595654124).

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

1011021213012 is a wasteful number, since it uses less digits than its factorization.

1011021213012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3663120367 (or 3663120365 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1011021213012 its reverse (2103121201101), we get a palindrome (3114142414113).

The spelling of 1011021213012 in words is "one trillion, eleven billion, twenty-one million, two hundred thirteen thousand, twelve".