100121211112222 has 16 divisors (see below), whose sum is σ = 156719160497952. Its totient is φ = 47881704824800.

The previous prime is 100121211112213. The next prime is 100121211112303. The reversal of 100121211112222 is 222211112121001.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 100121211112222.

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 7 ways as a sum of consecutive naturals, for example, 52523029 + ... + 54395872.

It is an arithmetic number, because the mean of its divisors is an integer number (9794947531122).

Almost surely, 2^{100121211112222} is an apocalyptic number.

100121211112222 is a deficient number, since it is larger than the sum of its proper divisors (56597949385730).

100121211112222 is a wasteful number, since it uses less digits than its factorization.

100121211112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106939283.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 100121211112222 its reverse (222211112121001), we get a palindrome (322332323233223).

The spelling of 100121211112222 in words is "one hundred trillion, one hundred twenty-one billion, two hundred eleven million, one hundred twelve thousand, two hundred twenty-two".