22001121000101 has 4 divisors (see below), whose sum is σ = 22013337060204. Its totient is φ = 21988904940000.

The previous prime is 22001121000077. The next prime is 22001121000109. The reversal of 22001121000101 is 10100012110022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8648016444001 + 13353104556100 = 2940751^2 + 3654190^2 .

It is a cyclic number.

It is not a de Polignac number, because 22001121000101 - 2²² = 22001116805797 is a prime.

It is a super-2 number, since 2×22001121000101² (a number of 27 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 (22001121000109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6108027350 + ... + 6108030951.

It is an arithmetic number, because the mean of its divisors is an integer number (5503334265051).

Almost surely, 2^{22001121000101} is an apocalyptic number.

It is an amenable number.

22001121000101 is a deficient number, since it is larger than the sum of its proper divisors (12216060103).

22001121000101 is a wasteful number, since it uses less digits than its factorization.

22001121000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12216060102.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 22001121000101 its reverse (10100012110022), we get a palindrome (32101133110123).

The spelling of 22001121000101 in words is "twenty-two trillion, one billion, one hundred twenty-one million, one hundred one", and thus it is an aban number.