22201001231 has 8 divisors (see below), whose sum is σ = 23400942720. Its totient is φ = 21004206552.

The previous prime is 22201001227. The next prime is 22201001237. The reversal of 22201001231 is 13210010222.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22201001231 - 2² = 22201001227 is a prime.

It is a super-2 number, since 2×22201001231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201001237) 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, 772205 + ... + 800438.

It is an arithmetic number, because the mean of its divisors is an integer number (2925117840).

Almost surely, 2^22201001231 is an apocalyptic number.

22201001231 is a deficient number, since it is larger than the sum of its proper divisors (1199941489).

22201001231 is a wasteful number, since it uses less digits than its factorization.

22201001231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573405.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22201001231 its reverse (13210010222), we get a palindrome (35411011453).

The spelling of 22201001231 in words is "twenty-two billion, two hundred one million, one thousand, two hundred thirty-one".