122212211020220 has 24 divisors (see below), whose sum is σ = 256648288236144. Its totient is φ = 48884380580736.

The previous prime is 122212211020187. The next prime is 122212211020231. The reversal of 122212211020220 is 22020112212221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 122212211020192 and 122212211020201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29497082 + ... + 33384161.

It is an arithmetic number, because the mean of its divisors is an integer number (10693678676506).

Almost surely, 2^{122212211020220} is an apocalyptic number.

122212211020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122212211020220 is an abundant number, since it is smaller than the sum of its proper divisors (134436077215924).

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

122212211020220 is a wasteful number, since it uses less digits than its factorization.

122212211020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62978429 (or 62978427 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 122212211020220 its reverse (22020112212221), we get a palindrome (144232323232441).

The spelling of 122212211020220 in words is "one hundred twenty-two trillion, two hundred twelve billion, two hundred eleven million, twenty thousand, two hundred twenty".