100111022012212 has 6 divisors (see below), whose sum is σ = 175194288521378. Its totient is φ = 50055511006104.

The previous prime is 100111022012161. The next prime is 100111022012219. The reversal of 100111022012212 is 212210220111001.

It can be written as a sum of positive squares in only one way, i.e., 99309914670096 + 801107342116 = 9965436^2 + 895046^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100111022012219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12513877751523 + ... + 12513877751530.

Almost surely, 2^{100111022012212} is an apocalyptic number.

It is an amenable number.

100111022012212 is a deficient number, since it is larger than the sum of its proper divisors (75083266509166).

100111022012212 is a wasteful number, since it uses less digits than its factorization.

100111022012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25027755503057 (or 25027755503055 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 100111022012212 its reverse (212210220111001), we get a palindrome (312321242123213).

The spelling of 100111022012212 in words is "one hundred trillion, one hundred eleven billion, twenty-two million, twelve thousand, two hundred twelve".