1201121101982 has 16 divisors (see below), whose sum is σ = 1851058101552. Its totient is φ = 584113705920.

The previous prime is 1201121101967. The next prime is 1201121101997. The reversal of 1201121101982 is 2891011211021.

It is an interprime number because it is at equal distance from previous prime (1201121101967) and next prime (1201121101997).

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 2790644 + ... + 3192167.

It is an arithmetic number, because the mean of its divisors is an integer number (115691131347).

Almost surely, 2^{1201121101982} is an apocalyptic number.

1201121101982 is a deficient number, since it is larger than the sum of its proper divisors (649936999570).

1201121101982 is a wasteful number, since it uses less digits than its factorization.

1201121101982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5985563.

The product of its (nonzero) digits is 576, while the sum is 29.

The spelling of 1201121101982 in words is "one trillion, two hundred one billion, one hundred twenty-one million, one hundred one thousand, nine hundred eighty-two".