1021001222012 has 24 divisors (see below), whose sum is σ = 1793662206336. Its totient is φ = 508526558768.

The previous prime is 1021001221991. The next prime is 1021001222093. The reversal of 1021001222012 is 2102221001201.

It is a congruent number.

It is an unprimeable number.

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, 28372343 + ... + 28408305.

It is an arithmetic number, because the mean of its divisors is an integer number (74735925264).

Almost surely, 2^{1021001222012} is an apocalyptic number.

It is an amenable number.

1021001222012 is a deficient number, since it is larger than the sum of its proper divisors (772660984324).

1021001222012 is a wasteful number, since it uses less digits than its factorization.

1021001222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63217 (or 63215 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1021001222012 its reverse (2102221001201), we get a palindrome (3123222223213).

The spelling of 1021001222012 in words is "one trillion, twenty-one billion, one million, two hundred twenty-two thousand, twelve".