102111402222 has 64 divisors (see below), whose sum is σ = 231918888960. Its totient is φ = 33287540832.

The previous prime is 102111402149. The next prime is 102111402233. The reversal of 102111402222 is 222204111201.

102111402222 is a `hidden beast` number, since 10 + 21 + 11 + 402 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102111402195 and 102111402204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3470023 + ... + 3499325.

It is an arithmetic number, because the mean of its divisors is an integer number (3623732640).

Almost surely, 2^102111402222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102111402222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115959444480).

102111402222 is an abundant number, since it is smaller than the sum of its proper divisors (129807486738).

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

102111402222 is a wasteful number, since it uses less digits than its factorization.

102111402222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30734 (or 30728 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102111402222 its reverse (222204111201), we get a palindrome (324315513423).

The spelling of 102111402222 in words is "one hundred two billion, one hundred eleven million, four hundred two thousand, two hundred twenty-two".