22001211121110 has 192 divisors, whose sum is σ = 59694866846208. Its totient is φ = 5177457871872.

The previous prime is 22001211121093. The next prime is 22001211121139. The reversal of 22001211121110 is 1112111210022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22001211121110.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 223025617 + ... + 223124243.

It is an arithmetic number, because the mean of its divisors is an integer number (310910764824).

Almost surely, 2^{22001211121110} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22001211121110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29847433423104).

22001211121110 is an abundant number, since it is smaller than the sum of its proper divisors (37693655725098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22001211121110 is a wasteful number, since it uses less digits than its factorization.

22001211121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100599 (or 100586 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 22001211121110 its reverse (1112111210022), we get a palindrome (23113322331132).

The spelling of 22001211121110 in words is "twenty-two trillion, one billion, two hundred eleven million, one hundred twenty-one thousand, one hundred ten".