22201011111210 has 128 divisors (see below), whose sum is σ = 54823945236480. Its totient is φ = 5749589873664.

The previous prime is 22201011111199. The next prime is 22201011111271. The reversal of 22201011111210 is 1211111010222.

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 22201011111210.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 3304210231 + ... + 3304216949.

It is an arithmetic number, because the mean of its divisors is an integer number (428312072160).

Almost surely, 2^{22201011111210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22201011111210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27411972618240).

22201011111210 is an abundant number, since it is smaller than the sum of its proper divisors (32622934125270).

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

22201011111210 is a wasteful number, since it uses less digits than its factorization.

22201011111210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11840.

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

Adding to 22201011111210 its reverse (1211111010222), we get a palindrome (23412122121432).

The spelling of 22201011111210 in words is "twenty-two trillion, two hundred one billion, eleven million, one hundred eleven thousand, two hundred ten".