1020221011012 has 12 divisors (see below), whose sum is σ = 2040442022080. Its totient is φ = 437237576136.

The previous prime is 1020221010733. The next prime is 1020221011039. The reversal of 1020221011012 is 2101101220201.

1020221011012 is an admirable number.

It is a super-2 number, since 2×1020221011012² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020221010983 and 1020221011001.

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 3 ways as a sum of consecutive naturals, for example, 18218232312 + ... + 18218232367.

Almost surely, 2^{1020221011012} is an apocalyptic number.

It is an amenable number.

1020221011012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1020221011012 is a wasteful number, since it uses less digits than its factorization.

1020221011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36436464690 (or 36436464688 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1020221011012 its reverse (2101101220201), we get a palindrome (3121322231213).

The spelling of 1020221011012 in words is "one trillion, twenty billion, two hundred twenty-one million, eleven thousand, twelve".