102011222211211 has 4 divisors (see below), whose sum is σ = 102011242608000. Its totient is φ = 102011201814424.

The previous prime is 102011222211203. The next prime is 102011222211253. The reversal of 102011222211211 is 112112222110201.

It is a happy number.

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 102011222211211 - 2³ = 102011222211203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102011222211611) 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, 2979990 + ... + 14591188.

It is an arithmetic number, because the mean of its divisors is an integer number (25502810652000).

Almost surely, 2^{102011222211211} is an apocalyptic number.

102011222211211 is a deficient number, since it is larger than the sum of its proper divisors (20396789).

102011222211211 is an equidigital number, since it uses as much as digits as its factorization.

102011222211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20396788.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 102011222211211 its reverse (112112222110201), we get a palindrome (214123444321412).

It can be divided in two parts, 102011 and 222211211, that added together give a palindrome (222313222).

The spelling of 102011222211211 in words is "one hundred two trillion, eleven billion, two hundred twenty-two million, two hundred eleven thousand, two hundred eleven".