102212221161 has 8 divisors (see below), whose sum is σ = 136290319200. Its totient is φ = 68137801952.

The previous prime is 102212221151. The next prime is 102212221187. The reversal of 102212221161 is 161122212201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102212221161 - 2¹³ = 102212212969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102212221141) 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, 854211 + ... + 966488.

It is an arithmetic number, because the mean of its divisors is an integer number (17036289900).

Almost surely, 2^102212221161 is an apocalyptic number.

It is an amenable number.

102212221161 is a deficient number, since it is larger than the sum of its proper divisors (34078098039).

102212221161 is a wasteful number, since it uses less digits than its factorization.

102212221161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839415.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 102212221161 its reverse (161122212201), we get a palindrome (263334433362).

The spelling of 102212221161 in words is "one hundred two billion, two hundred twelve million, two hundred twenty-one thousand, one hundred sixty-one".