22221021201001 has 32 divisors (see below), whose sum is σ = 26263458321408. Its totient is φ = 18405325310400.

The previous prime is 22221021200999. The next prime is 22221021201019. The reversal of 22221021201001 is 10010212012222.

It is a happy number.

It is not a de Polignac number, because 22221021201001 - 2¹ = 22221021200999 is a prime.

It is a super-4 number, since 4×22221021201001⁴ (a number of 54 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (22221021201031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39454486 + ... + 40013728.

It is an arithmetic number, because the mean of its divisors is an integer number (820733072544).

Almost surely, 2^{22221021201001} is an apocalyptic number.

It is an amenable number.

22221021201001 is a deficient number, since it is larger than the sum of its proper divisors (4042437120407).

22221021201001 is a wasteful number, since it uses less digits than its factorization.

22221021201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560701.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22221021201001 its reverse (10010212012222), we get a palindrome (32231233213223).

The spelling of 22221021201001 in words is "twenty-two trillion, two hundred twenty-one billion, twenty-one million, two hundred one thousand, one".