102120022012 has 6 divisors (see below), whose sum is σ = 178710038528. Its totient is φ = 51060011004.

The previous prime is 102120022007. The next prime is 102120022021. The reversal of 102120022012 is 210220021201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102120021983 and 102120022001.

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, 12765002748 + ... + 12765002755.

Almost surely, 2^102120022012 is an apocalyptic number.

It is an amenable number.

102120022012 is a deficient number, since it is larger than the sum of its proper divisors (76590016516).

102120022012 is a wasteful number, since it uses less digits than its factorization.

102120022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25530005507 (or 25530005505 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102120022012 its reverse (210220021201), we get a palindrome (312340043213).

The spelling of 102120022012 in words is "one hundred two billion, one hundred twenty million, twenty-two thousand, twelve".