121901271834 has 8 divisors (see below), whose sum is σ = 243802543680. Its totient is φ = 40633757276.

The previous prime is 121901271827. The next prime is 121901271851. The reversal of 121901271834 is 438172109121.

It is a sphenic number, since it is the product of 3 distinct primes.

121901271834 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 121901271792 and 121901271801.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10158439314 + ... + 10158439325.

It is an arithmetic number, because the mean of its divisors is an integer number (30475317960).

Almost surely, 2^121901271834 is an apocalyptic number.

121901271834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121901271834 is a wasteful number, since it uses less digits than its factorization.

121901271834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20316878644.

The product of its (nonzero) digits is 24192, while the sum is 39.

The spelling of 121901271834 in words is "one hundred twenty-one billion, nine hundred one million, two hundred seventy-one thousand, eight hundred thirty-four".