121202122100212 has 6 divisors (see below), whose sum is σ = 212103713675378. Its totient is φ = 60601061050104.

The previous prime is 121202122100209. The next prime is 121202122100281. The reversal of 121202122100212 is 212001221202121.

It can be written as a sum of positive squares in only one way, i.e., 109530374136976 + 11671747963236 = 10465676^2 + 3416394^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121202122100212.

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, 15150265262523 + ... + 15150265262530.

Almost surely, 2^{121202122100212} is an apocalyptic number.

It is an amenable number.

121202122100212 is a deficient number, since it is larger than the sum of its proper divisors (90901591575166).

121202122100212 is a wasteful number, since it uses less digits than its factorization.

121202122100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30300530525057 (or 30300530525055 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121202122100212 its reverse (212001221202121), we get a palindrome (333203343302333).

The spelling of 121202122100212 in words is "one hundred twenty-one trillion, two hundred two billion, one hundred twenty-two million, one hundred thousand, two hundred twelve".