1020122220122 has 4 divisors (see below), whose sum is σ = 1530183330186. Its totient is φ = 510061110060.

The previous prime is 1020122220107. The next prime is 1020122220167. The reversal of 1020122220122 is 2210222210201.

It is a happy number.

It is a Cunningham number, because it is equal to 1010011²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1020122220121 + 1 = 1010011^2 + 1^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1020122220122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255030555029 + ... + 255030555032.

Almost surely, 2^{1020122220122} is an apocalyptic number.

1020122220122 is a deficient number, since it is larger than the sum of its proper divisors (510061110064).

1020122220122 is an equidigital number, since it uses as much as digits as its factorization.

1020122220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510061110063.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1020122220122 its reverse (2210222210201), we get a palindrome (3230344430323).

The spelling of 1020122220122 in words is "one trillion, twenty billion, one hundred twenty-two million, two hundred twenty thousand, one hundred twenty-two".