102120021212212 has 24 divisors (see below), whose sum is σ = 184728625303040. Its totient is φ = 49344945202080.

The previous prime is 102120021212129. The next prime is 102120021212213. The reversal of 102120021212212 is 212212120021201.

It is a self number, because there is not a number n which added to its sum of digits gives 102120021212212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120021212213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566311887 + ... + 566492182.

Almost surely, 2^{102120021212212} is an apocalyptic number.

It is an amenable number.

102120021212212 is a deficient number, since it is larger than the sum of its proper divisors (82608604090828).

102120021212212 is a wasteful number, since it uses less digits than its factorization.

102120021212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132804831 (or 1132804829 counting only the distinct ones).

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

Adding to 102120021212212 its reverse (212212120021201), we get a palindrome (314332141233413).

The spelling of 102120021212212 in words is "one hundred two trillion, one hundred twenty billion, twenty-one million, two hundred twelve thousand, two hundred twelve".