421655001101 has 8 divisors (see below), whose sum is σ = 443856647520. Its totient is φ = 399454282512.

The previous prime is 421655001077. The next prime is 421655001121. The reversal of 421655001101 is 101100556124.

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

It is a cyclic number.

It is not a de Polignac number, because 421655001101 - 2¹⁴ = 421654984717 is a prime.

It is a super-2 number, since 2×421655001101² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421655001121) 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, 824231 + ... + 1233963.

It is an arithmetic number, because the mean of its divisors is an integer number (55482080940).

Almost surely, 2^421655001101 is an apocalyptic number.

It is an amenable number.

421655001101 is a deficient number, since it is larger than the sum of its proper divisors (22201646419).

421655001101 is a wasteful number, since it uses less digits than its factorization.

421655001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463915.

The product of its (nonzero) digits is 1200, while the sum is 26.

Adding to 421655001101 its reverse (101100556124), we get a palindrome (522755557225).

The spelling of 421655001101 in words is "four hundred twenty-one billion, six hundred fifty-five million, one thousand, one hundred one".