100012212222122 has 16 divisors (see below), whose sum is σ = 154857998886912. Its totient is φ = 48392887175760.

The previous prime is 100012212222121. The next prime is 100012212222173. The reversal of 100012212222122 is 221222212210001.

It is a junction number, because it is equal to n+sod(n) for n = 100012212222094 and 100012212222103.

It is not an unprimeable number, because it can be changed into a prime (100012212222121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26854343 + ... + 30350949.

It is an arithmetic number, because the mean of its divisors is an integer number (9678624930432).

Almost surely, 2^{100012212222122} is an apocalyptic number.

100012212222122 is a deficient number, since it is larger than the sum of its proper divisors (54845786664790).

100012212222122 is a wasteful number, since it uses less digits than its factorization.

100012212222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3957973.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 100012212222122 its reverse (221222212210001), we get a palindrome (321234424432123).

It can be divided in two parts, 10001 and 2212222122, that multiplied together give a palindrome (22124433442122).

The spelling of 100012212222122 in words is "one hundred trillion, twelve billion, two hundred twelve million, two hundred twenty-two thousand, one hundred twenty-two".