22220100201121 has 8 divisors (see below), whose sum is σ = 23535710978184. Its totient is φ = 20905438986240.

The previous prime is 22220100201109. The next prime is 22220100201137. The reversal of 22220100201121 is 12110200102222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6023588490000 + 16196511711121 = 2454300^2 + 4024489^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22220100201121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22220100201095 and 22220100201104.

It is not an unprimeable number, because it can be changed into a prime (22220100201151) 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, 237342360 + ... + 237435961.

It is an arithmetic number, because the mean of its divisors is an integer number (2941963872273).

Almost surely, 2^{22220100201121} is an apocalyptic number.

It is an amenable number.

22220100201121 is a deficient number, since it is larger than the sum of its proper divisors (1315610777063).

22220100201121 is a wasteful number, since it uses less digits than its factorization.

22220100201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474781091.

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

Adding to 22220100201121 its reverse (12110200102222), we get a palindrome (34330300303343).

The spelling of 22220100201121 in words is "twenty-two trillion, two hundred twenty billion, one hundred million, two hundred one thousand, one hundred twenty-one".