102110211222222 has 96 divisors (see below), whose sum is σ = 245373336059904. Its totient is φ = 28216256644800.

The previous prime is 102110211222127. The next prime is 102110211222223. The reversal of 102110211222222 is 222222112011201.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102110211222223) 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, 11788072 + ... + 18525092.

It is an arithmetic number, because the mean of its divisors is an integer number (2555972250624).

Almost surely, 2^{102110211222222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102110211222222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122686668029952).

102110211222222 is an abundant number, since it is smaller than the sum of its proper divisors (143263124837682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102110211222222 is a wasteful number, since it uses less digits than its factorization.

102110211222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6738734 (or 6738727 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 102110211222222 its reverse (222222112011201), we get a palindrome (324332323233423).

The spelling of 102110211222222 in words is "one hundred two trillion, one hundred ten billion, two hundred eleven million, two hundred twenty-two thousand, two hundred twenty-two".