102011123201212 has 6 divisors (see below), whose sum is σ = 178519465602128. Its totient is φ = 51005561600604.

The previous prime is 102011123201173. The next prime is 102011123201213. The reversal of 102011123201212 is 212102321110201.

It is a self number, because there is not a number n which added to its sum of digits gives 102011123201212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011123201213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12751390400148 + ... + 12751390400155.

Almost surely, 2^{102011123201212} is an apocalyptic number.

It is an amenable number.

102011123201212 is a deficient number, since it is larger than the sum of its proper divisors (76508342400916).

102011123201212 is a wasteful number, since it uses less digits than its factorization.

102011123201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25502780800307 (or 25502780800305 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 102011123201212 its reverse (212102321110201), we get a palindrome (314113444311413).

The spelling of 102011123201212 in words is "one hundred two trillion, eleven billion, one hundred twenty-three million, two hundred one thousand, two hundred twelve".