1222020100503 has 24 divisors (see below), whose sum is σ = 1806478979760. Its totient is φ = 795821178240.

The previous prime is 1222020100501. The next prime is 1222020100517. The reversal of 1222020100503 is 3050010202221.

1222020100503 is a `hidden beast` number, since 1 + 22 + 20 + 20 + 100 + 503 = 666.

It is not a de Polignac number, because 1222020100503 - 2¹ = 1222020100501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222020100501) 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 23 ways as a sum of consecutive naturals, for example, 9123988 + ... + 9256953.

It is an arithmetic number, because the mean of its divisors is an integer number (75269957490).

Almost surely, 2^{1222020100503} is an apocalyptic number.

1222020100503 is a deficient number, since it is larger than the sum of its proper divisors (584458879257).

1222020100503 is a wasteful number, since it uses less digits than its factorization.

1222020100503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18381119 (or 18381116 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 1222020100503 its reverse (3050010202221), we get a palindrome (4272030302724).

The spelling of 1222020100503 in words is "one trillion, two hundred twenty-two billion, twenty million, one hundred thousand, five hundred three".