20214901 has 12 divisors (see below), whose sum is σ = 23588652. Its totient is φ = 17273088.

The previous prime is 20214893. The next prime is 20214911. The reversal of 20214901 is 10941202.

It can be written as a sum of positive squares in 2 ways, for example, as 2160900 + 18054001 = 1470^2 + 4249^2 .

It is not a de Polignac number, because 20214901 - 2³ = 20214893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20214911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29701 + ... + 30373.

It is an arithmetic number, because the mean of its divisors is an integer number (1965721).

Almost surely, 2^20214901 is an apocalyptic number.

It is an amenable number.

20214901 is a deficient number, since it is larger than the sum of its proper divisors (3373751).

20214901 is an equidigital number, since it uses as much as digits as its factorization.

20214901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300 (or 1293 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 20214901 is about 4496.0984197413. The cubic root of 20214901 is about 272.4105185537.

It can be divided in two parts, 20214 and 901, that added together give a triangular number (21115 = T₂₀₅).

The spelling of 20214901 in words is "twenty million, two hundred fourteen thousand, nine hundred one".