1201202122122 has 16 divisors (see below), whose sum is σ = 2669338049280. Its totient is φ = 400400707356.

The previous prime is 1201202122121. The next prime is 1201202122123. The reversal of 1201202122122 is 2212212021021.

It is a happy number.

1201202122122 is a `hidden beast` number, since 120 + 120 + 212 + 212 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1201202122121) and next prime (1201202122123).

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 = 1201202122095 and 1201202122104.

It is not an unprimeable number, because it can be changed into a prime (1201202122121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11122241818 + ... + 11122241925.

It is an arithmetic number, because the mean of its divisors is an integer number (166833628080).

Almost surely, 2^{1201202122122} is an apocalyptic number.

1201202122122 is an abundant number, since it is smaller than the sum of its proper divisors (1468135927158).

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

1201202122122 is a wasteful number, since it uses less digits than its factorization.

1201202122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22244483754 (or 22244483748 counting only the distinct ones).

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

Adding to 1201202122122 its reverse (2212212021021), we get a palindrome (3413414143143).

The spelling of 1201202122122 in words is "one trillion, two hundred one billion, two hundred two million, one hundred twenty-two thousand, one hundred twenty-two".