212202111100122 has 48 divisors (see below), whose sum is σ = 540150828261408. Its totient is φ = 59357233873440.

The previous prime is 212202111100121. The next prime is 212202111100159. The reversal of 212202111100122 is 221001111202212.

212202111100122 is a `hidden beast` number, since 2 + 1 + 220 + 211 + 110 + 0 + 122 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 212202111100095 and 212202111100104.

It is not an unprimeable number, because it can be changed into a prime (212202111100121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41220298728 + ... + 41220303875.

It is an arithmetic number, because the mean of its divisors is an integer number (11253142255446).

Almost surely, 2^{212202111100122} is an apocalyptic number.

212202111100122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212202111100122 is an abundant number, since it is smaller than the sum of its proper divisors (327948717161286).

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

212202111100122 is a wasteful number, since it uses less digits than its factorization.

212202111100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82440602635 (or 82440602632 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212202111100122 its reverse (221001111202212), we get a palindrome (433203222302334).

The spelling of 212202111100122 in words is "two hundred twelve trillion, two hundred two billion, one hundred eleven million, one hundred thousand, one hundred twenty-two".