21022142301 has 20 divisors (see below), whose sum is σ = 32768817312. Its totient is φ = 13405422888.

The previous prime is 21022142287. The next prime is 21022142303. The reversal of 21022142301 is 10324122012.

It is a happy number.

21022142301 is a `hidden beast` number, since 21 + 0 + 221 + 423 + 0 + 1 = 666.

It is not a de Polignac number, because 21022142301 - 2⁶ = 21022142237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022142303) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5640151 + ... + 5643876.

Almost surely, 2^21022142301 is an apocalyptic number.

It is an amenable number.

21022142301 is a deficient number, since it is larger than the sum of its proper divisors (11746675011).

21022142301 is a wasteful number, since it uses less digits than its factorization.

21022142301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11284062 (or 11284053 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 21022142301 its reverse (10324122012), we get a palindrome (31346264313).

The spelling of 21022142301 in words is "twenty-one billion, twenty-two million, one hundred forty-two thousand, three hundred one".