1021102102211 has 4 divisors (see below), whose sum is σ = 1021324908912. Its totient is φ = 1020879295512.

The previous prime is 1021102102123. The next prime is 1021102102219. The reversal of 1021102102211 is 1122012011201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1021102102211 - 2²⁶ = 1021034993347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021102102219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111396476 + ... + 111405641.

It is an arithmetic number, because the mean of its divisors is an integer number (255331227228).

Almost surely, 2^{1021102102211} is an apocalyptic number.

1021102102211 is a deficient number, since it is larger than the sum of its proper divisors (222806701).

1021102102211 is an equidigital number, since it uses as much as digits as its factorization.

1021102102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222806700.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1021102102211 its reverse (1122012011201), we get a palindrome (2143114113412).

The spelling of 1021102102211 in words is "one trillion, twenty-one billion, one hundred two million, one hundred two thousand, two hundred eleven".