100001122022212 has 6 divisors (see below), whose sum is σ = 175001963538878. Its totient is φ = 50000561011104.

The previous prime is 100001122022189. The next prime is 100001122022231. The reversal of 100001122022212 is 212220221100001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 82211504507136 + 17789617515076 = 9067056^2 + 4217774^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12500140252773 + ... + 12500140252780.

Almost surely, 2^{100001122022212} is an apocalyptic number.

It is an amenable number.

100001122022212 is a deficient number, since it is larger than the sum of its proper divisors (75000841516666).

100001122022212 is a wasteful number, since it uses less digits than its factorization.

100001122022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25000280505557 (or 25000280505555 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 100001122022212 its reverse (212220221100001), we get a palindrome (312221343122213).

The spelling of 100001122022212 in words is "one hundred trillion, one billion, one hundred twenty-two million, twenty-two thousand, two hundred twelve".