22021444122 has 32 divisors (see below), whose sum is σ = 46783661184. Its totient is φ = 6886464000.

The previous prime is 22021444099. The next prime is 22021444127. The reversal of 22021444122 is 22144412022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22021444092 and 22021444101.

It is not an unprimeable number, because it can be changed into a prime (22021444127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315379 + ... + 378822.

It is an arithmetic number, because the mean of its divisors is an integer number (1461989412).

Almost surely, 2^22021444122 is an apocalyptic number.

22021444122 is an abundant number, since it is smaller than the sum of its proper divisors (24762217062).

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

22021444122 is a wasteful number, since it uses less digits than its factorization.

22021444122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694534.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 22021444122 its reverse (22144412022), we get a palindrome (44165856144).

It can be divided in two parts, 22021444 and 122, that added together give a triangular number (22021566 = T₆₆₃₆).

The spelling of 22021444122 in words is "twenty-two billion, twenty-one million, four hundred forty-four thousand, one hundred twenty-two".