1201022122112 has 16 divisors (see below), whose sum is σ = 2392661259150. Its totient is φ = 600511060992.

The previous prime is 1201022122093. The next prime is 1201022122147. The reversal of 1201022122112 is 2112212201021.

It can be written as a sum of positive squares in only one way, i.e., 1047151076416 + 153871045696 = 1023304^2 + 392264^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4691492537 + ... + 4691492792.

Almost surely, 2^{1201022122112} is an apocalyptic number.

It is an amenable number.

1201022122112 is a deficient number, since it is larger than the sum of its proper divisors (1191639137038).

1201022122112 is an frugal number, since it uses more digits than its factorization.

1201022122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9382985343 (or 9382985331 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1201022122112 its reverse (2112212201021), we get a palindrome (3313234323133).

The spelling of 1201022122112 in words is "one trillion, two hundred one billion, twenty-two million, one hundred twenty-two thousand, one hundred twelve".