1020122212122 has 48 divisors (see below), whose sum is σ = 2403852397128. Its totient is φ = 310775990400.

The previous prime is 1020122212049. The next prime is 1020122212159. The reversal of 1020122212122 is 2212122210201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 921928349241 + 98193862881 = 960171^2 + 313359^2 .

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 = 1020122212095 and 1020122212104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21558033 + ... + 21605300.

Almost surely, 2^{1020122212122} is an apocalyptic number.

1020122212122 is an abundant number, since it is smaller than the sum of its proper divisors (1383730185006).

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

1020122212122 is a wasteful number, since it uses less digits than its factorization.

1020122212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43163455 (or 43163452 counting only the distinct ones).

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

Adding to 1020122212122 its reverse (2212122210201), we get a palindrome (3232244422323).

The spelling of 1020122212122 in words is "one trillion, twenty billion, one hundred twenty-two million, two hundred twelve thousand, one hundred twenty-two".