1012021221012 has 48 divisors (see below), whose sum is σ = 2365014661632. Its totient is φ = 336821879680.

The previous prime is 1012021220971. The next prime is 1012021221023. The reversal of 1012021221012 is 2101221202101.

It is a super-3 number, since 3×1012021221012³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1012021220982 and 1012021221000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29611438 + ... + 29645594.

It is an arithmetic number, because the mean of its divisors is an integer number (49271138784).

Almost surely, 2^{1012021221012} is an apocalyptic number.

1012021221012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1012021221012 is an abundant number, since it is smaller than the sum of its proper divisors (1352993440620).

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

1012021221012 is a wasteful number, since it uses less digits than its factorization.

1012021221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37888 (or 37886 counting only the distinct ones).

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

Adding to 1012021221012 its reverse (2101221202101), we get a palindrome (3113242423113).

The spelling of 1012021221012 in words is "one trillion, twelve billion, twenty-one million, two hundred twenty-one thousand, twelve".