20210021241 has 8 divisors (see below), whose sum is σ = 26948356800. Its totient is φ = 13472516592.

The previous prime is 20210021233. The next prime is 20210021257. The reversal of 20210021241 is 14212001202.

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

It is not a de Polignac number, because 20210021241 - 2³ = 20210021233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20210021241.

It is not an unprimeable number, because it can be changed into a prime (20210021641) 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 7 ways as a sum of consecutive naturals, for example, 148566 + ... + 249983.

It is an arithmetic number, because the mean of its divisors is an integer number (3368544600).

Almost surely, 2^20210021241 is an apocalyptic number.

It is an amenable number.

20210021241 is a deficient number, since it is larger than the sum of its proper divisors (6738335559).

20210021241 is a wasteful number, since it uses less digits than its factorization.

20210021241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415455.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20210021241 its reverse (14212001202), we get a palindrome (34422022443).

The spelling of 20210021241 in words is "twenty billion, two hundred ten million, twenty-one thousand, two hundred forty-one".