1021002002211 has 8 divisors (see below), whose sum is σ = 1368463417344. Its totient is φ = 677104294280.

The previous prime is 1021002002191. The next prime is 1021002002227. The reversal of 1021002002211 is 1122002001201.

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

It is a cyclic number.

It is not a de Polignac number, because 1021002002211 - 2¹⁷ = 1021001871139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021002002411) by changing a digit.

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, 890926131 + ... + 890927276.

It is an arithmetic number, because the mean of its divisors is an integer number (171057927168).

Almost surely, 2^{1021002002211} is an apocalyptic number.

1021002002211 is a deficient number, since it is larger than the sum of its proper divisors (347461415133).

1021002002211 is a wasteful number, since it uses less digits than its factorization.

1021002002211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781853601.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1021002002211 its reverse (1122002001201), we get a palindrome (2143004003412).

The spelling of 1021002002211 in words is "one trillion, twenty-one billion, two million, two thousand, two hundred eleven".