20122121103 has 8 divisors (see below), whose sum is σ = 30662279808. Its totient is φ = 11498354904.

The previous prime is 20122121101. The next prime is 20122121141. The reversal of 20122121103 is 30112122102.

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

It is not a de Polignac number, because 20122121103 - 2¹ = 20122121101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122121101) 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, 479098101 + ... + 479098142.

It is an arithmetic number, because the mean of its divisors is an integer number (3832784976).

Almost surely, 2^20122121103 is an apocalyptic number.

20122121103 is a deficient number, since it is larger than the sum of its proper divisors (10540158705).

20122121103 is an equidigital number, since it uses as much as digits as its factorization.

20122121103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958196253.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20122121103 its reverse (30112122102), we get a palindrome (50234243205).

Subtracting 20122121103 from its reverse (30112122102), we obtain a palindrome (9990000999).

The spelling of 20122121103 in words is "twenty billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred three".