100120111021012 has 6 divisors (see below), whose sum is σ = 175210194286778. Its totient is φ = 50060055510504.

The previous prime is 100120111020989. The next prime is 100120111021027. The reversal of 100120111021012 is 210120111021001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 94236798814096 + 5883312206916 = 9707564^2 + 2425554^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100120111020983 and 100120111021001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12515013877623 + ... + 12515013877630.

Almost surely, 2^{100120111021012} is an apocalyptic number.

It is an amenable number.

100120111021012 is a deficient number, since it is larger than the sum of its proper divisors (75090083265766).

100120111021012 is a wasteful number, since it uses less digits than its factorization.

100120111021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25030027755257 (or 25030027755255 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 100120111021012 its reverse (210120111021001), we get a palindrome (310240222042013).

The spelling of 100120111021012 in words is "one hundred trillion, one hundred twenty billion, one hundred eleven million, twenty-one thousand, twelve".