1022221210122 has 96 divisors (see below), whose sum is σ = 2546381485440. Its totient is φ = 290315612160.

The previous prime is 1022221210069. The next prime is 1022221210187. The reversal of 1022221210122 is 2210121222201.

It is a happy number.

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 = 1022221210095 and 1022221210104.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31329597 + ... + 31362207.

It is an arithmetic number, because the mean of its divisors is an integer number (26524807140).

Almost surely, 2^{1022221210122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022221210122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1273190742720).

1022221210122 is an abundant number, since it is smaller than the sum of its proper divisors (1524160275318).

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

1022221210122 is a wasteful number, since it uses less digits than its factorization.

1022221210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34108 (or 34105 counting only the distinct ones).

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

Adding to 1022221210122 its reverse (2210121222201), we get a palindrome (3232342432323).

The spelling of 1022221210122 in words is "one trillion, twenty-two billion, two hundred twenty-one million, two hundred ten thousand, one hundred twenty-two".