100421421222031 has 16 divisors (see below), whose sum is σ = 123993008875008. Its totient is φ = 79198831173600.

The previous prime is 100421421222029. The next prime is 100421421222071. The reversal of 100421421222031 is 130222124124001.

It is a cyclic number.

It is not a de Polignac number, because 100421421222031 - 2¹ = 100421421222029 is a prime.

It is a super-2 number, since 2×100421421222031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100421421221987 and 100421421222005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100421421222071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1774139065 + ... + 1774195666.

It is an arithmetic number, because the mean of its divisors is an integer number (7749563054688).

Almost surely, 2^{100421421222031} is an apocalyptic number.

100421421222031 is a deficient number, since it is larger than the sum of its proper divisors (23571587652977).

100421421222031 is a wasteful number, since it uses less digits than its factorization.

100421421222031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3548335062.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 100421421222031 its reverse (130222124124001), we get a palindrome (230643545346032).

The spelling of 100421421222031 in words is "one hundred trillion, four hundred twenty-one billion, four hundred twenty-one million, two hundred twenty-two thousand, thirty-one".