22001100020121 has 8 divisors (see below), whose sum is σ = 29392432248960. Its totient is φ = 14638583902352.

The previous prime is 22001100020113. The next prime is 22001100020147. The reversal of 22001100020121 is 12102000110022.

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 22001100020121 - 2³ = 22001100020113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22001100020097 and 22001100020106.

It is not an unprimeable number, because it can be changed into a prime (22001100020171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7204025985 + ... + 7204029038.

It is an arithmetic number, because the mean of its divisors is an integer number (3674054031120).

Almost surely, 2^{22001100020121} is an apocalyptic number.

It is an amenable number.

22001100020121 is a deficient number, since it is larger than the sum of its proper divisors (7391332228839).

22001100020121 is a wasteful number, since it uses less digits than its factorization.

22001100020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14408055535.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22001100020121 its reverse (12102000110022), we get a palindrome (34103100130143).

The spelling of 22001100020121 in words is "twenty-two trillion, one billion, one hundred million, twenty thousand, one hundred twenty-one".