100111021121222 has 32 divisors (see below), whose sum is σ = 159080607655200. Its totient is φ = 47087146283008.

The previous prime is 100111021121191. The next prime is 100111021121383. The reversal of 100111021121222 is 222121120111001.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 100111021121222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1020149054 + ... + 1020247182.

It is an arithmetic number, because the mean of its divisors is an integer number (4971268989225).

Almost surely, 2^{100111021121222} is an apocalyptic number.

100111021121222 is a deficient number, since it is larger than the sum of its proper divisors (58969586533978).

100111021121222 is a wasteful number, since it uses less digits than its factorization.

100111021121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113080.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 100111021121222 its reverse (222121120111001), we get a palindrome (322232141232223).

The spelling of 100111021121222 in words is "one hundred trillion, one hundred eleven billion, twenty-one million, one hundred twenty-one thousand, two hundred twenty-two".