102021122221011 has 48 divisors (see below), whose sum is σ = 178472610912960. Its totient is φ = 54914649431040.

The previous prime is 102021122221001. The next prime is 102021122221019. The reversal of 102021122221011 is 110122221120201.

102021122221011 is a `hidden beast` number, since 1 + 0 + 20 + 211 + 222 + 210 + 1 + 1 = 666.

It is not a de Polignac number, because 102021122221011 - 2⁹ = 102021122220499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102021122221019) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 680910330 + ... + 681060143.

It is an arithmetic number, because the mean of its divisors is an integer number (3718179394020).

Almost surely, 2^{102021122221011} is an apocalyptic number.

102021122221011 is a deficient number, since it is larger than the sum of its proper divisors (76451488691949).

102021122221011 is a wasteful number, since it uses less digits than its factorization.

102021122221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361970556 (or 1361970553 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 102021122221011 its reverse (110122221120201), we get a palindrome (212143343341212).

The spelling of 102021122221011 in words is "one hundred two trillion, twenty-one billion, one hundred twenty-two million, two hundred twenty-one thousand, eleven".