100122220020212 has 24 divisors (see below), whose sum is σ = 188693003389800. Its totient is φ = 46209979345536.

The previous prime is 100122220020187. The next prime is 100122220020233. The reversal of 100122220020212 is 212020022221001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8452242111076 + 91669977909136 = 2907274^2 + 9574444^2 .

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, 3169214 + ... + 14501322.

It is an arithmetic number, because the mean of its divisors is an integer number (7862208474575).

Almost surely, 2^{100122220020212} is an apocalyptic number.

It is an amenable number.

100122220020212 is a deficient number, since it is larger than the sum of its proper divisors (88570783369588).

100122220020212 is a wasteful number, since it uses less digits than its factorization.

100122220020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11502035 (or 11502033 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 100122220020212 its reverse (212020022221001), we get a palindrome (312142242241213).

The spelling of 100122220020212 in words is "one hundred trillion, one hundred twenty-two billion, two hundred twenty million, twenty thousand, two hundred twelve".