1020102222222 has 64 divisors (see below), whose sum is σ = 2287782351360. Its totient is φ = 336902977152.

The previous prime is 1020102222151. The next prime is 1020102222277. The reversal of 1020102222222 is 2222222010201.

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

1020102222222 is a modest number, since divided by 2222222 gives 102010 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1020102222195 and 1020102222204.

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, 17685313 + ... + 17742899.

It is an arithmetic number, because the mean of its divisors is an integer number (35746599240).

Almost surely, 2^{1020102222222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020102222222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1143891175680).

1020102222222 is an abundant number, since it is smaller than the sum of its proper divisors (1267680129138).

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

1020102222222 is a wasteful number, since it uses less digits than its factorization.

1020102222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60614 (or 60608 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 1020102222222 its reverse (2222222010201), we get a palindrome (3242324232423).

It can be divided in two parts, 102010 and 2222222, that added together give a palindrome (2324232).

The spelling of 1020102222222 in words is "one trillion, twenty billion, one hundred two million, two hundred twenty-two thousand, two hundred twenty-two".