101121002021 has 8 divisors (see below), whose sum is σ = 109507920480. Its totient is φ = 92820994992.

The previous prime is 101121002011. The next prime is 101121002039. The reversal of 101121002021 is 120200121101.

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 101121002021 - 2¹⁰ = 101121000997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101121001993 and 101121002011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101121002011) 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, 21725435 + ... + 21730088.

It is an arithmetic number, because the mean of its divisors is an integer number (13688490060).

Almost surely, 2^101121002021 is an apocalyptic number.

It is an amenable number.

101121002021 is a deficient number, since it is larger than the sum of its proper divisors (8386918459).

101121002021 is a wasteful number, since it uses less digits than its factorization.

101121002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43455715.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 101121002021 its reverse (120200121101), we get a palindrome (221321123122).

The spelling of 101121002021 in words is "one hundred one billion, one hundred twenty-one million, two thousand, twenty-one".