100121122121222 has 16 divisors (see below), whose sum is σ = 152518484328000. Its totient is φ = 49285258738560.

The previous prime is 100121122121191. The next prime is 100121122121249. The reversal of 100121122121222 is 222121221121001.

It is a super-3 number, since 3×100121122121222³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100121122121194 and 100121122121203.

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, 907792979 + ... + 907903262.

It is an arithmetic number, because the mean of its divisors is an integer number (9532405270500).

Almost surely, 2^{100121122121222} is an apocalyptic number.

100121122121222 is a deficient number, since it is larger than the sum of its proper divisors (52397362206778).

100121122121222 is a wasteful number, since it uses less digits than its factorization.

100121122121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815696671.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 100121122121222 its reverse (222121221121001), we get a palindrome (322242343242223).

The spelling of 100121122121222 in words is "one hundred trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred twenty-two".