1271881120122 has 24 divisors (see below), whose sum is σ = 2771137643040. Its totient is φ = 421591878600.

The previous prime is 1271881120121. The next prime is 1271881120123. The reversal of 1271881120122 is 2210211881721.

It is an interprime number because it is at equal distance from previous prime (1271881120121) and next prime (1271881120123).

It is not an unprimeable number, because it can be changed into a prime (1271881120121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197371254 + ... + 197377697.

It is an arithmetic number, because the mean of its divisors is an integer number (115464068460).

Almost surely, 2^{1271881120122} is an apocalyptic number.

1271881120122 is an abundant number, since it is smaller than the sum of its proper divisors (1499256522918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1271881120122 is a wasteful number, since it uses less digits than its factorization.

1271881120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394749138 (or 394749135 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 36.

The spelling of 1271881120122 in words is "one trillion, two hundred seventy-one billion, eight hundred eighty-one million, one hundred twenty thousand, one hundred twenty-two".