121100000212 has 12 divisors (see below), whose sum is σ = 212070863956. Its totient is φ = 60508324800.

The previous prime is 121100000207. The next prime is 121100000257. The reversal of 121100000212 is 212000001121.

It can be written as a sum of positive squares in 2 ways, for example, as 95434037776 + 25665962436 = 308924^2 + 160206^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10412289 + ... + 10423912.

Almost surely, 2^121100000212 is an apocalyptic number.

It is an amenable number.

121100000212 is a deficient number, since it is larger than the sum of its proper divisors (90970863744).

121100000212 is a wasteful number, since it uses less digits than its factorization.

121100000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20837658 (or 20837656 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121100000212 its reverse (212000001121), we get a palindrome (333100001333).

Subtracting 121100000212 from its reverse (212000001121), we obtain a palindrome (90900000909).

The spelling of 121100000212 in words is "one hundred twenty-one billion, one hundred million, two hundred twelve", and thus it is an aban number.