202101103021 has 16 divisors (see below), whose sum is σ = 214625880000. Its totient is φ = 189769488768.

The previous prime is 202101102943. The next prime is 202101103031. The reversal of 202101103021 is 120301101202.

202101103021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 202101103021 - 2⁷ = 202101102893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202101102992 and 202101103010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202101103031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1613355 + ... + 1734103.

It is an arithmetic number, because the mean of its divisors is an integer number (13414117500).

Almost surely, 2^202101103021 is an apocalyptic number.

It is an amenable number.

202101103021 is a deficient number, since it is larger than the sum of its proper divisors (12524776979).

202101103021 is a wasteful number, since it uses less digits than its factorization.

202101103021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121548.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 202101103021 its reverse (120301101202), we get a palindrome (322402204223).

The spelling of 202101103021 in words is "two hundred two billion, one hundred one million, one hundred three thousand, twenty-one".