122022211220 has 192 divisors, whose sum is σ = 326519617536. Its totient is φ = 37276692480.

The previous prime is 122022211219. The next prime is 122022211321. The reversal of 122022211220 is 22112220221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6234650 + ... + 6254190.

It is an arithmetic number, because the mean of its divisors is an integer number (1700623008).

Almost surely, 2^122022211220 is an apocalyptic number.

122022211220 is a gapful number since it is divisible by the number (10) 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 122022211220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163259808768).

122022211220 is an abundant number, since it is smaller than the sum of its proper divisors (204497406316).

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

122022211220 is a wasteful number, since it uses less digits than its factorization.

122022211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19690 (or 19688 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 122022211220 its reverse (22112220221), we get a palindrome (144134431441).

Subtracting from 122022211220 its reverse (22112220221), we obtain a palindrome (99909990999).

The spelling of 122022211220 in words is "one hundred twenty-two billion, twenty-two million, two hundred eleven thousand, two hundred twenty".