102121121100212 has 36 divisors (see below), whose sum is σ = 180530179333056. Its totient is φ = 50546221356960.

The previous prime is 102121121100191. The next prime is 102121121100253. The reversal of 102121121100212 is 212001121121201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51444887 + ... + 53393057.

It is an arithmetic number, because the mean of its divisors is an integer number (5014727203696).

Almost surely, 2^{102121121100212} is an apocalyptic number.

It is an amenable number.

102121121100212 is a deficient number, since it is larger than the sum of its proper divisors (78409058232844).

102121121100212 is a wasteful number, since it uses less digits than its factorization.

102121121100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949496 (or 1949385 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 102121121100212 its reverse (212001121121201), we get a palindrome (314122242221413).

The spelling of 102121121100212 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred twenty-one million, one hundred thousand, two hundred twelve".