101120121021 has 8 divisors (see below), whose sum is σ = 142757817984. Its totient is φ = 63447919040.

The previous prime is 101120121007. The next prime is 101120121029. The reversal of 101120121021 is 120121021101.

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 101120121021 - 2⁹ = 101120120509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101120120988 and 101120121006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101120121029) 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, 991373685 + ... + 991373786.

It is an arithmetic number, because the mean of its divisors is an integer number (17844727248).

Almost surely, 2^101120121021 is an apocalyptic number.

It is an amenable number.

101120121021 is a deficient number, since it is larger than the sum of its proper divisors (41637696963).

101120121021 is a wasteful number, since it uses less digits than its factorization.

101120121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982747491.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101120121021 its reverse (120121021101), we get a palindrome (221241142122).

It can be divided in two parts, 101 and 120121021, that multiplied together give a palindrome (12132223121).

The spelling of 101120121021 in words is "one hundred one billion, one hundred twenty million, one hundred twenty-one thousand, twenty-one".