100120220212 has 6 divisors (see below), whose sum is σ = 175210385378. Its totient is φ = 50060110104.

The previous prime is 100120220171. The next prime is 100120220309. The reversal of 100120220212 is 212022021001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 52494141456 + 47626078756 = 229116^2 + 218234^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100120220192 and 100120220201.

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, 12515027523 + ... + 12515027530.

Almost surely, 2^100120220212 is an apocalyptic number.

It is an amenable number.

100120220212 is a deficient number, since it is larger than the sum of its proper divisors (75090165166).

100120220212 is a wasteful number, since it uses less digits than its factorization.

100120220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25030055057 (or 25030055055 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 100120220212 its reverse (212022021001), we get a palindrome (312142241213).

The spelling of 100120220212 in words is "one hundred billion, one hundred twenty million, two hundred twenty thousand, two hundred twelve".