421101055 has 8 divisors (see below), whose sum is σ = 521622144. Its totient is φ = 326013600.

The previous prime is 421101049. The next prime is 421101073. The reversal of 421101055 is 550101124.

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

It is not a de Polignac number, because 421101055 - 2¹⁵ = 421068287 is a prime.

It is a super-2 number, since 2×421101055² = 354652197044226050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1358236 + ... + 1358545.

It is an arithmetic number, because the mean of its divisors is an integer number (65202768).

Almost surely, 2^421101055 is an apocalyptic number.

421101055 is a deficient number, since it is larger than the sum of its proper divisors (100521089).

421101055 is a wasteful number, since it uses less digits than its factorization.

421101055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2716817.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 421101055 is about 20520.7469405965. The cubic root of 421101055 is about 749.5410851794.

Adding to 421101055 its reverse (550101124), we get a palindrome (971202179).

The spelling of 421101055 in words is "four hundred twenty-one million, one hundred one thousand, fifty-five".