1201121222012 has 12 divisors (see below), whose sum is σ = 2102367255240. Its totient is φ = 600444863376.

The previous prime is 1201121221991. The next prime is 1201121222033. The reversal of 1201121222012 is 2102221211021.

It is an interprime number because it is at equal distance from previous prime (1201121221991) and next prime (1201121222033).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28913558 + ... + 28955069.

It is an arithmetic number, because the mean of its divisors is an integer number (175197271270).

Almost surely, 2^{1201121222012} is an apocalyptic number.

It is an amenable number.

1201121222012 is a deficient number, since it is larger than the sum of its proper divisors (901246033228).

1201121222012 is a wasteful number, since it uses less digits than its factorization.

1201121222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57873820 (or 57873818 counting only the distinct ones).

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

Adding to 1201121222012 its reverse (2102221211021), we get a palindrome (3303342433033).

The spelling of 1201121222012 in words is "one trillion, two hundred one billion, one hundred twenty-one million, two hundred twenty-two thousand, twelve".