101121221243 has 8 divisors (see below), whose sum is σ = 115698892512. Its totient is φ = 86576495616.

The previous prime is 101121221239. The next prime is 101121221347. The reversal of 101121221243 is 342122121101.

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

It is a cyclic number.

It is not a de Polignac number, because 101121221243 - 2² = 101121221239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101121221213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8229830 + ... + 8242107.

It is an arithmetic number, because the mean of its divisors is an integer number (14462361564).

Almost surely, 2^101121221243 is an apocalyptic number.

101121221243 is a deficient number, since it is larger than the sum of its proper divisors (14577671269).

101121221243 is an equidigital number, since it uses as much as digits as its factorization.

101121221243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16472821.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 101121221243 its reverse (342122121101), we get a palindrome (443243342344).

The spelling of 101121221243 in words is "one hundred one billion, one hundred twenty-one million, two hundred twenty-one thousand, two hundred forty-three".