21202141233 has 48 divisors (see below), whose sum is σ = 35033496576. Its totient is φ = 11167865280.

The previous prime is 21202141231. The next prime is 21202141273. The reversal of 21202141233 is 33214120212.

It is not a de Polignac number, because 21202141233 - 2¹ = 21202141231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21202141231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2789268 + ... + 2796858.

It is an arithmetic number, because the mean of its divisors is an integer number (729864512).

Almost surely, 2^21202141233 is an apocalyptic number.

It is an amenable number.

21202141233 is a deficient number, since it is larger than the sum of its proper divisors (13831355343).

21202141233 is a wasteful number, since it uses less digits than its factorization.

21202141233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8414 (or 8401 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21202141233 its reverse (33214120212), we get a palindrome (54416261445).

The spelling of 21202141233 in words is "twenty-one billion, two hundred two million, one hundred forty-one thousand, two hundred thirty-three".