421121701 has 64 divisors (see below), whose sum is σ = 599703552. Its totient is φ = 285120000.

The previous prime is 421121699. The next prime is 421121707. The reversal of 421121701 is 107121124.

It is not a de Polignac number, because 421121701 - 2¹ = 421121699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421121707) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1272106 + ... + 1272436.

It is an arithmetic number, because the mean of its divisors is an integer number (9370368).

It is a Poulet number, since it divides 2^421121700-1.

Almost surely, 2^421121701 is an apocalyptic number.

421121701 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

421121701 is the 10261-st decagonal number.

It is an amenable number.

421121701 is a deficient number, since it is larger than the sum of its proper divisors (178581851).

421121701 is a wasteful number, since it uses less digits than its factorization.

421121701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 421121701 is about 20521.2499862947. The cubic root of 421121701 is about 749.5533346321.

Adding to 421121701 its reverse (107121124), we get a palindrome (528242825).

The spelling of 421121701 in words is "four hundred twenty-one million, one hundred twenty-one thousand, seven hundred one".