20210021220103 has 8 divisors (see below), whose sum is σ = 23743241713296. Its totient is φ = 16959458366400.

The previous prime is 20210021220089. The next prime is 20210021220131. The reversal of 20210021220103 is 30102212001202.

It is a happy number.

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

It is not a de Polignac number, because 20210021220103 - 2¹³ = 20210021211911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210021229103) 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, 70664409718 + ... + 70664410003.

It is an arithmetic number, because the mean of its divisors is an integer number (2967905214162).

Almost surely, 2^{20210021220103} is an apocalyptic number.

20210021220103 is a deficient number, since it is larger than the sum of its proper divisors (3533220493193).

20210021220103 is a wasteful number, since it uses less digits than its factorization.

20210021220103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141328819745.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20210021220103 its reverse (30102212001202), we get a palindrome (50312233221305).

The spelling of 20210021220103 in words is "twenty trillion, two hundred ten billion, twenty-one million, two hundred twenty thousand, one hundred three".