1020221120122 has 8 divisors (see below), whose sum is σ = 1620351190836. Its totient is φ = 480104056512.

The previous prime is 1020221120077. The next prime is 1020221120147. The reversal of 1020221120122 is 2210211220201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 786256397521 + 233964722601 = 886711^2 + 483699^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1020221120122² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020221120096 and 1020221120105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15003251733 + ... + 15003251800.

Almost surely, 2^{1020221120122} is an apocalyptic number.

1020221120122 is a deficient number, since it is larger than the sum of its proper divisors (600130070714).

1020221120122 is a wasteful number, since it uses less digits than its factorization.

1020221120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30006503552.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1020221120122 its reverse (2210211220201), we get a palindrome (3230432340323).

The spelling of 1020221120122 in words is "one trillion, twenty billion, two hundred twenty-one million, one hundred twenty thousand, one hundred twenty-two".