122402200212 has 36 divisors (see below), whose sum is σ = 309453979380. Its totient is φ = 40794348672.

The previous prime is 122402200199. The next prime is 122402200223. The reversal of 122402200212 is 212002204221.

122402200212 is a `hidden beast` number, since 12 + 240 + 2 + 200 + 212 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22908638736 + 99493561476 = 151356^2 + 315426^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29913 + ... + 495680.

Almost surely, 2^122402200212 is an apocalyptic number.

122402200212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122402200212 is an abundant number, since it is smaller than the sum of its proper divisors (187051779168).

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

122402200212 is a wasteful number, since it uses less digits than its factorization.

122402200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532072 (or 532067 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 122402200212 its reverse (212002204221), we get a palindrome (334404404433).

The spelling of 122402200212 in words is "one hundred twenty-two billion, four hundred two million, two hundred thousand, two hundred twelve".