102012221211211 has 8 divisors (see below), whose sum is σ = 104510872713744. Its totient is φ = 99514072020480.

The previous prime is 102012221211193. The next prime is 102012221211221. The reversal of 102012221211211 is 112112122210201.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102012221211211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102012221211221) 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, 125166790 + ... + 125979163.

It is an arithmetic number, because the mean of its divisors is an integer number (13063859089218).

Almost surely, 2^{102012221211211} is an apocalyptic number.

102012221211211 is a deficient number, since it is larger than the sum of its proper divisors (2498651502533).

102012221211211 is an equidigital number, since it uses as much as digits as its factorization.

102012221211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251155901.

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

Adding to 102012221211211 its reverse (112112122210201), we get a palindrome (214124343421412).

The spelling of 102012221211211 in words is "one hundred two trillion, twelve billion, two hundred twenty-one million, two hundred eleven thousand, two hundred eleven".