10121221705942 has 8 divisors (see below), whose sum is σ = 15186534282000. Its totient is φ = 5059043611944.

The previous prime is 10121221705919. The next prime is 10121221705943. The reversal of 10121221705942 is 24950712212101.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121221705943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 783612442 + ... + 783625357.

It is an arithmetic number, because the mean of its divisors is an integer number (1898316785250).

Almost surely, 2^{10121221705942} is an apocalyptic number.

10121221705942 is a deficient number, since it is larger than the sum of its proper divisors (5065312576058).

10121221705942 is a wasteful number, since it uses less digits than its factorization.

10121221705942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567241030.

The product of its (nonzero) digits is 20160, while the sum is 37.

The spelling of 10121221705942 in words is "ten trillion, one hundred twenty-one billion, two hundred twenty-one million, seven hundred five thousand, nine hundred forty-two".