1021001011222 has 8 divisors (see below), whose sum is σ = 1598088539376. Its totient is φ = 488304831432.

The previous prime is 1021001011183. The next prime is 1021001011223. The reversal of 1021001011222 is 2221101001201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021001011223) by changing a digit.

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, 11097837033 + ... + 11097837124.

It is an arithmetic number, because the mean of its divisors is an integer number (199761067422).

Almost surely, 2^{1021001011222} is an apocalyptic number.

1021001011222 is a deficient number, since it is larger than the sum of its proper divisors (577087528154).

1021001011222 is a wasteful number, since it uses less digits than its factorization.

1021001011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22195674182.

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

Adding to 1021001011222 its reverse (2221101001201), we get a palindrome (3242102012423).

The spelling of 1021001011222 in words is "one trillion, twenty-one billion, one million, eleven thousand, two hundred twenty-two".