1011000221012 has 24 divisors (see below), whose sum is σ = 1971919938240. Its totient is φ = 450724556160.

The previous prime is 1011000220973. The next prime is 1011000221039. The reversal of 1011000221012 is 2101220001101.

It is a junction number, because it is equal to n+sod(n) for n = 1011000220984 and 1011000221002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391252664 + ... + 391255247.

It is an arithmetic number, because the mean of its divisors is an integer number (82163330760).

Almost surely, 2^{1011000221012} is an apocalyptic number.

It is an amenable number.

1011000221012 is a deficient number, since it is larger than the sum of its proper divisors (960919717228).

1011000221012 is a wasteful number, since it uses less digits than its factorization.

1011000221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782507951 (or 782507949 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1011000221012 its reverse (2101220001101), we get a palindrome (3112220222113).

The spelling of 1011000221012 in words is "one trillion, eleven billion, two hundred twenty-one thousand, twelve".