122122112220220 has 48 divisors (see below), whose sum is σ = 293537823828480. Its totient is φ = 41806902118464.

The previous prime is 122122112220211. The next prime is 122122112220233. The reversal of 122122112220220 is 22022211221221.

It is a junction number, because it is equal to n+sod(n) for n = 122122112220191 and 122122112220200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661744464 + ... + 661928983.

It is an arithmetic number, because the mean of its divisors is an integer number (6115371329760).

Almost surely, 2^{122122112220220} is an apocalyptic number.

122122112220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122122112220220 is an abundant number, since it is smaller than the sum of its proper divisors (171415711608260).

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

122122112220220 is a wasteful number, since it uses less digits than its factorization.

122122112220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323674122 (or 1323674120 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 122122112220220 its reverse (22022211221221), we get a palindrome (144144323441441).

The spelling of 122122112220220 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, one hundred twelve million, two hundred twenty thousand, two hundred twenty".