22311030123220 has 96 divisors (see below), whose sum is σ = 50889138693120. Its totient is φ = 8183306588160.

The previous prime is 22311030123199. The next prime is 22311030123253. The reversal of 22311030123220 is 2232103011322.

It is a super-3 number, since 3×22311030123220³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22311030123191 and 22311030123200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9033621 + ... + 11235139.

It is an arithmetic number, because the mean of its divisors is an integer number (530095194720).

Almost surely, 2^{22311030123220} is an apocalyptic number.

22311030123220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22311030123220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25444569346560).

22311030123220 is an abundant number, since it is smaller than the sum of its proper divisors (28578108569900).

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

22311030123220 is a wasteful number, since it uses less digits than its factorization.

22311030123220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202313 (or 2202311 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 22311030123220 its reverse (2232103011322), we get a palindrome (24543133134542).

The spelling of 22311030123220 in words is "twenty-two trillion, three hundred eleven billion, thirty million, one hundred twenty-three thousand, two hundred twenty".