1020222012122 has 4 divisors (see below), whose sum is σ = 1530333018186. Its totient is φ = 510111006060.

The previous prime is 1020222012083. The next prime is 1020222012133. The reversal of 1020222012122 is 2212102220201.

It is a happy number.

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., 914435100121 + 105786912001 = 956261^2 + 325249^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1020222012122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255055503029 + ... + 255055503032.

Almost surely, 2^{1020222012122} is an apocalyptic number.

1020222012122 is a deficient number, since it is larger than the sum of its proper divisors (510111006064).

1020222012122 is an equidigital number, since it uses as much as digits as its factorization.

1020222012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510111006063.

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

Adding to 1020222012122 its reverse (2212102220201), we get a palindrome (3232324232323).

The spelling of 1020222012122 in words is "one trillion, twenty billion, two hundred twenty-two million, twelve thousand, one hundred twenty-two".