122212200020 has 24 divisors (see below), whose sum is σ = 257305393800. Its totient is φ = 48759208832.

The previous prime is 122212200017. The next prime is 122212200037. The reversal of 122212200020 is 20002212221.

It can be written as a sum of positive squares in 4 ways, for example, as 4033012036 + 118179187984 = 63506^2 + 343772^2 .

It is a junction number, because it is equal to n+sod(n) for n = 122212199968 and 122212200004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7846475 + ... + 7862034.

It is an arithmetic number, because the mean of its divisors is an integer number (10721058075).

Almost surely, 2^122212200020 is an apocalyptic number.

122212200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122212200020 is an abundant number, since it is smaller than the sum of its proper divisors (135093193780).

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

122212200020 is a wasteful number, since it uses less digits than its factorization.

122212200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15708907 (or 15708905 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 122212200020 its reverse (20002212221), we get a palindrome (142214412241).

The spelling of 122212200020 in words is "one hundred twenty-two billion, two hundred twelve million, two hundred thousand, twenty".