102201121012 has 6 divisors (see below), whose sum is σ = 178851961778. Its totient is φ = 51100560504.

The previous prime is 102201120997. The next prime is 102201121037. The reversal of 102201121012 is 210121102201.

It can be written as a sum of positive squares in only one way, i.e., 74460219876 + 27740901136 = 272874^2 + 166556^2 .

It is a super-2 number, since 2×102201121012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102201120983 and 102201121001.

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, 12775140123 + ... + 12775140130.

Almost surely, 2^102201121012 is an apocalyptic number.

It is an amenable number.

102201121012 is a deficient number, since it is larger than the sum of its proper divisors (76650840766).

102201121012 is a wasteful number, since it uses less digits than its factorization.

102201121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25550280257 (or 25550280255 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102201121012 its reverse (210121102201), we get a palindrome (312322223213).

The spelling of 102201121012 in words is "one hundred two billion, two hundred one million, one hundred twenty-one thousand, twelve".