102001212212 has 6 divisors (see below), whose sum is σ = 178502121378. Its totient is φ = 51000606104.

The previous prime is 102001212211. The next prime is 102001212221. The reversal of 102001212212 is 212212100201.

It can be written as a sum of positive squares in only one way, i.e., 71810064676 + 30191147536 = 267974^2 + 173756^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102001212211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12750151523 + ... + 12750151530.

It is an arithmetic number, because the mean of its divisors is an integer number (29750353563).

Almost surely, 2^102001212212 is an apocalyptic number.

It is an amenable number.

102001212212 is a deficient number, since it is larger than the sum of its proper divisors (76500909166).

102001212212 is a wasteful number, since it uses less digits than its factorization.

102001212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25500303057 (or 25500303055 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102001212212 its reverse (212212100201), we get a palindrome (314213312413).

The spelling of 102001212212 in words is "one hundred two billion, one million, two hundred twelve thousand, two hundred twelve".