22001011121001 has 16 divisors (see below), whose sum is σ = 32110690772160. Its totient is φ = 13288437779520.

The previous prime is 22001011120831. The next prime is 22001011121029. The reversal of 22001011121001 is 10012111010022.

It is not a de Polignac number, because 22001011121001 - 2¹³ = 22001011112809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22001011121501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1137699046 + ... + 1137718383.

It is an arithmetic number, because the mean of its divisors is an integer number (2006918173260).

Almost surely, 2^{22001011121001} is an apocalyptic number.

It is an amenable number.

22001011121001 is a deficient number, since it is larger than the sum of its proper divisors (10109679651159).

22001011121001 is a wasteful number, since it uses less digits than its factorization.

22001011121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275417736.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 22001011121001 its reverse (10012111010022), we get a palindrome (32013122131023).

The spelling of 22001011121001 in words is "twenty-two trillion, one billion, eleven million, one hundred twenty-one thousand, one".