22001120002001 has 8 divisors (see below), whose sum is σ = 25519422774720. Its totient is φ = 18576638636688.

The previous prime is 22001120001979. The next prime is 22001120002009. The reversal of 22001120002001 is 10020002110022.

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 22001120002001 - 2²⁶ = 22001052893137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22001120002009) 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, 23455351346 + ... + 23455352283.

It is an arithmetic number, because the mean of its divisors is an integer number (3189927846840).

Almost surely, 2^{22001120002001} is an apocalyptic number.

It is an amenable number.

22001120002001 is a deficient number, since it is larger than the sum of its proper divisors (3518302772719).

22001120002001 is an equidigital number, since it uses as much as digits as its factorization.

22001120002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46910703703.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22001120002001 its reverse (10020002110022), we get a palindrome (32021122112023).

The spelling of 22001120002001 in words is "twenty-two trillion, one billion, one hundred twenty million, two thousand, one".