101121202021 has 8 divisors (see below), whose sum is σ = 118385797824. Its totient is φ = 84561283680.

The previous prime is 101121202001. The next prime is 101121202031. The reversal of 101121202021 is 120202121101.

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 101121202021 - 2⁵ = 101121201989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101121201992 and 101121202010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101121202001) 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, 176169055 + ... + 176169628.

It is an arithmetic number, because the mean of its divisors is an integer number (14798224728).

Almost surely, 2^101121202021 is an apocalyptic number.

It is an amenable number.

101121202021 is a deficient number, since it is larger than the sum of its proper divisors (17264595803).

101121202021 is an equidigital number, since it uses as much as digits as its factorization.

101121202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352338731.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101121202021 its reverse (120202121101), we get a palindrome (221323323122).

The spelling of 101121202021 in words is "one hundred one billion, one hundred twenty-one million, two hundred two thousand, twenty-one".