22211110210121 has 64 divisors (see below), whose sum is σ = 27888862003200. Its totient is φ = 17256161534976.

The previous prime is 22211110210111. The next prime is 22211110210151. The reversal of 22211110210121 is 12101201111222.

It is not a de Polignac number, because 22211110210121 - 2¹⁴ = 22211110193737 is a prime.

It is a super-2 number, since 2×22211110210121² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22211110210121.

It is not an unprimeable number, because it can be changed into a prime (22211110210111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 296272640 + ... + 296347598.

It is an arithmetic number, because the mean of its divisors is an integer number (435763468800).

Almost surely, 2^{22211110210121} is an apocalyptic number.

It is an amenable number.

22211110210121 is a deficient number, since it is larger than the sum of its proper divisors (5677751793079).

22211110210121 is a wasteful number, since it uses less digits than its factorization.

22211110210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75838.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22211110210121 its reverse (12101201111222), we get a palindrome (34312311321343).

The spelling of 22211110210121 in words is "twenty-two trillion, two hundred eleven billion, one hundred ten million, two hundred ten thousand, one hundred twenty-one".