1201121012122 has 16 divisors (see below), whose sum is σ = 1851101644392. Its totient is φ = 584174062080.

The previous prime is 1201121012107. The next prime is 1201121012129. The reversal of 1201121012122 is 2212101211021.

It can be written as a sum of positive squares in 4 ways, for example, as 491094009961 + 710027002161 = 700781^2 + 842631^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1201121012096 and 1201121012105.

It is not an unprimeable number, because it can be changed into a prime (1201121012129) 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, 21705033 + ... + 21760300.

Almost surely, 2^{1201121012122} is an apocalyptic number.

1201121012122 is a deficient number, since it is larger than the sum of its proper divisors (649980632270).

1201121012122 is a wasteful number, since it uses less digits than its factorization.

1201121012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43465713.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1201121012122 its reverse (2212101211021), we get a palindrome (3413222223143).

The spelling of 1201121012122 in words is "one trillion, two hundred one billion, one hundred twenty-one million, twelve thousand, one hundred twenty-two".