1020222202122 has 64 divisors (see below), whose sum is σ = 2307637555200. Its totient is φ = 334055534400.

The previous prime is 1020222202093. The next prime is 1020222202141. The reversal of 1020222202122 is 2212022220201.

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 = 1020222202095 and 1020222202104.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43797 + ... + 1429112.

It is an arithmetic number, because the mean of its divisors is an integer number (36056836800).

Almost surely, 2^{1020222202122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020222202122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1153818777600).

1020222202122 is an abundant number, since it is smaller than the sum of its proper divisors (1287415353078).

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

1020222202122 is a wasteful number, since it uses less digits than its factorization.

1020222202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473148 (or 1473142 counting only the distinct ones).

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

Adding to 1020222202122 its reverse (2212022220201), we get a palindrome (3232244422323).

The spelling of 1020222202122 in words is "one trillion, twenty billion, two hundred twenty-two million, two hundred two thousand, one hundred twenty-two".