1202211022122 has 72 divisors (see below), whose sum is σ = 2888454792132. Its totient is φ = 361082346240.

The previous prime is 1202211022121. The next prime is 1202211022141. The reversal of 1202211022122 is 2212201122021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1202003056881 + 207965241 = 1096359^2 + 14421^2 .

It is a super-2 number, since 2×1202211022122² (a number of 25 digits) contains 22 as substring.

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 = 1202211022095 and 1202211022104.

It is not an unprimeable number, because it can be changed into a prime (1202211022121) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2196273 + ... + 2688500.

Almost surely, 2^{1202211022122} is an apocalyptic number.

1202211022122 is an abundant number, since it is smaller than the sum of its proper divisors (1686243770010).

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

1202211022122 is a wasteful number, since it uses less digits than its factorization.

1202211022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4884916 (or 4884902 counting only the distinct ones).

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

Adding to 1202211022122 its reverse (2212201122021), we get a palindrome (3414412144143).

The spelling of 1202211022122 in words is "one trillion, two hundred two billion, two hundred eleven million, twenty-two thousand, one hundred twenty-two".