122222001330 has 512 divisors, whose sum is σ = 419474764800. Its totient is φ = 24850022400.

The previous prime is 122222001329. The next prime is 122222001331. The reversal of 122222001330 is 33100222221.

It is an interprime number because it is at equal distance from previous prime (122222001329) and next prime (122222001331).

It is a super-2 number, since 2×122222001330² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (122222001331) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 19031520 + ... + 19037940.

It is an arithmetic number, because the mean of its divisors is an integer number (819286650).

Almost surely, 2^122222001330 is an apocalyptic number.

122222001330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122222001330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209737382400).

122222001330 is an abundant number, since it is smaller than the sum of its proper divisors (297252763470).

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

122222001330 is a wasteful number, since it uses less digits than its factorization.

122222001330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6507 (or 6501 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 122222001330 its reverse (33100222221), we get a palindrome (155322223551).

The spelling of 122222001330 in words is "one hundred twenty-two billion, two hundred twenty-two million, one thousand, three hundred thirty".