22211211021222 has 16 divisors (see below), whose sum is σ = 45954229699440. Its totient is φ = 7148435730912.

The previous prime is 22211211021179. The next prime is 22211211021271. The reversal of 22211211021222 is 22212011211222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63825318853 + ... + 63825319200.

It is an arithmetic number, because the mean of its divisors is an integer number (2872139356215).

Almost surely, 2^{22211211021222} is an apocalyptic number.

22211211021222 is an abundant number, since it is smaller than the sum of its proper divisors (23743018678218).

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

22211211021222 is a wasteful number, since it uses less digits than its factorization.

22211211021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127650638087.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 22211211021222 its reverse (22212011211222), we get a palindrome (44423222232444).

The spelling of 22211211021222 in words is "twenty-two trillion, two hundred eleven billion, two hundred eleven million, twenty-one thousand, two hundred twenty-two".