22220212121101 has 32 divisors (see below), whose sum is σ = 23600200064000. Its totient is φ = 20861854445952.

The previous prime is 22220212121069. The next prime is 22220212121113. The reversal of 22220212121101 is 10112121202222.

It is a cyclic number.

It is not a de Polignac number, because 22220212121101 - 2⁵ = 22220212121069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220212121141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4917061720 + ... + 4917066238.

It is an arithmetic number, because the mean of its divisors is an integer number (737506252000).

Almost surely, 2^{22220212121101} is an apocalyptic number.

It is an amenable number.

22220212121101 is a deficient number, since it is larger than the sum of its proper divisors (1379987942899).

22220212121101 is a wasteful number, since it uses less digits than its factorization.

22220212121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7601.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22220212121101 its reverse (10112121202222), we get a palindrome (32332333323323).

The spelling of 22220212121101 in words is "twenty-two trillion, two hundred twenty billion, two hundred twelve million, one hundred twenty-one thousand, one hundred one".