122011210200020 has 12 divisors (see below), whose sum is σ = 256223541420084. Its totient is φ = 48804484080000.

The previous prime is 122011210199999. The next prime is 122011210200023. The reversal of 122011210200020 is 20002012110221.

It can be written as a sum of positive squares in 2 ways, for example, as 82748604583876 + 39262605616144 = 9096626^2 + 6265988^2 .

It is a junction number, because it is equal to n+sod(n) for n = 122011210199968 and 122011210200004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122011210200023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3050280254981 + ... + 3050280255020.

It is an arithmetic number, because the mean of its divisors is an integer number (21351961785007).

Almost surely, 2^{122011210200020} is an apocalyptic number.

122011210200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122011210200020 is an abundant number, since it is smaller than the sum of its proper divisors (134212331220064).

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

122011210200020 is a wasteful number, since it uses less digits than its factorization.

122011210200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6100560510010 (or 6100560510008 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122011210200020 its reverse (20002012110221), we get a palindrome (142013222310241).

The spelling of 122011210200020 in words is "one hundred twenty-two trillion, eleven billion, two hundred ten million, two hundred thousand, twenty".