22101000200121 has 32 divisors (see below), whose sum is σ = 30579576156160. Its totient is φ = 14187074178816.

The previous prime is 22101000200113. The next prime is 22101000200141. The reversal of 22101000200121 is 12100200010122.

It is not a de Polignac number, because 22101000200121 - 2³ = 22101000200113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22101000200097 and 22101000200106.

It is not an unprimeable number, because it can be changed into a prime (22101000200101) 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, 3621975 + ... + 7571043.

It is an arithmetic number, because the mean of its divisors is an integer number (955611754880).

Almost surely, 2^{22101000200121} is an apocalyptic number.

It is an amenable number.

22101000200121 is a deficient number, since it is larger than the sum of its proper divisors (8478575956039).

22101000200121 is a wasteful number, since it uses less digits than its factorization.

22101000200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3949633.

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

Adding to 22101000200121 its reverse (12100200010122), we get a palindrome (34201200210243).

The spelling of 22101000200121 in words is "twenty-two trillion, one hundred one billion, two hundred thousand, one hundred twenty-one".