102020112111222 has 256 divisors, whose sum is σ = 257803587993600. Its totient is φ = 29733007772160.

The previous prime is 102020112111193. The next prime is 102020112111241. The reversal of 102020112111222 is 222111211020201.

102020112111222 is a `hidden beast` number, since 10 + 20 + 201 + 1 + 211 + 1 + 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 = 102020112111195 and 102020112111204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 99931429 + ... + 100947167.

It is an arithmetic number, because the mean of its divisors is an integer number (1007045265600).

Almost surely, 2^{102020112111222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102020112111222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128901793996800).

102020112111222 is an abundant number, since it is smaller than the sum of its proper divisors (155783475882378).

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

102020112111222 is a wasteful number, since it uses less digits than its factorization.

102020112111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015928 (or 1015922 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 102020112111222 its reverse (222111211020201), we get a palindrome (324131323131423).

The spelling of 102020112111222 in words is "one hundred two trillion, twenty billion, one hundred twelve million, one hundred eleven thousand, two hundred twenty-two".