102021211111211 has 8 divisors (see below), whose sum is σ = 116595805369344. Its totient is φ = 87446650735080.

The previous prime is 102021211111151. The next prime is 102021211111213. The reversal of 102021211111211 is 112111112120201.

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

It is not a de Polignac number, because 102021211111211 - 2³⁴ = 102004031242027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102021211111211.

It is not an unprimeable number, because it can be changed into a prime (102021211111213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1652315 + ... + 14379588.

It is an arithmetic number, because the mean of its divisors is an integer number (14574475671168).

Almost surely, 2^{102021211111211} is an apocalyptic number.

102021211111211 is a deficient number, since it is larger than the sum of its proper divisors (14574594258133).

102021211111211 is an equidigital number, since it uses as much as digits as its factorization.

102021211111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16941001.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 102021211111211 its reverse (112111112120201), we get a palindrome (214132323231412).

The spelling of 102021211111211 in words is "one hundred two trillion, twenty-one billion, two hundred eleven million, one hundred eleven thousand, two hundred eleven".