21144150201 has 8 divisors (see below), whose sum is σ = 28193083360. Its totient is φ = 14095658592.

The previous prime is 21144150173. The next prime is 21144150211. The reversal of 21144150201 is 10205144112.

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

It is not a de Polignac number, because 21144150201 - 2¹³ = 21144142009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21144150211) 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, 25110 + ... + 207168.

It is an arithmetic number, because the mean of its divisors is an integer number (3524135420).

Almost surely, 2^21144150201 is an apocalyptic number.

It is an amenable number.

21144150201 is a deficient number, since it is larger than the sum of its proper divisors (7048933159).

21144150201 is a wasteful number, since it uses less digits than its factorization.

21144150201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220775.

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 21144150201 its reverse (10205144112), we get a palindrome (31349294313).

The spelling of 21144150201 in words is "twenty-one billion, one hundred forty-four million, one hundred fifty thousand, two hundred one".