22145420001 has 8 divisors (see below), whose sum is σ = 29556494560. Its totient is φ = 14748979392.

The previous prime is 22145419991. The next prime is 22145420009. The reversal of 22145420001 is 10002454122.

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

It is not a de Polignac number, because 22145420001 - 2⁵ = 22145419969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22145420001.

It is not an unprimeable number, because it can be changed into a prime (22145420009) 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, 3654955 + ... + 3661008.

It is an arithmetic number, because the mean of its divisors is an integer number (3694561820).

Almost surely, 2^22145420001 is an apocalyptic number.

It is an amenable number.

22145420001 is a deficient number, since it is larger than the sum of its proper divisors (7411074559).

22145420001 is a wasteful number, since it uses less digits than its factorization.

22145420001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7316975.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 22145420001 its reverse (10002454122), we get a palindrome (32147874123).

The spelling of 22145420001 in words is "twenty-two billion, one hundred forty-five million, four hundred twenty thousand, one".