20221212021103 has 4 divisors (see below), whose sum is σ = 20221332125008. Its totient is φ = 20221091917200.

The previous prime is 20221212021079. The next prime is 20221212021137. The reversal of 20221212021103 is 30112021212202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20221212021103 - 2⁹ = 20221212020591 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 (20221212024103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59799051 + ... + 60136252.

It is an arithmetic number, because the mean of its divisors is an integer number (5055333031252).

Almost surely, 2^{20221212021103} is an apocalyptic number.

20221212021103 is a deficient number, since it is larger than the sum of its proper divisors (120103905).

20221212021103 is a wasteful number, since it uses less digits than its factorization.

20221212021103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120103904.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20221212021103 its reverse (30112021212202), we get a palindrome (50333233233305).

The spelling of 20221212021103 in words is "twenty trillion, two hundred twenty-one billion, two hundred twelve million, twenty-one thousand, one hundred three".