1201112121122 has 16 divisors (see below), whose sum is σ = 1819418825400. Its totient is φ = 594646583040.

The previous prime is 1201112121109. The next prime is 1201112121137. The reversal of 1201112121122 is 2211212111021.

It can be written as a sum of positive squares in 4 ways, for example, as 897644448481 + 303467672641 = 947441^2 + 550879^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1201112121122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1525529 + ... + 2174732.

Almost surely, 2^{1201112121122} is an apocalyptic number.

1201112121122 is a deficient number, since it is larger than the sum of its proper divisors (618306704278).

1201112121122 is a wasteful number, since it uses less digits than its factorization.

1201112121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701861.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1201112121122 its reverse (2211212111021), we get a palindrome (3412324232143).

The spelling of 1201112121122 in words is "one trillion, two hundred one billion, one hundred twelve million, one hundred twenty-one thousand, one hundred twenty-two".