102121166211 has 16 divisors (see below), whose sum is σ = 137729854080. Its totient is φ = 67300833600.

The previous prime is 102121166179. The next prime is 102121166269. The reversal of 102121166211 is 112661121201.

It is not a de Polignac number, because 102121166211 - 2⁵ = 102121166179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102121166011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 428365 + ... + 622686.

It is an arithmetic number, because the mean of its divisors is an integer number (8608115880).

Almost surely, 2^102121166211 is an apocalyptic number.

102121166211 is a deficient number, since it is larger than the sum of its proper divisors (35608687869).

102121166211 is a wasteful number, since it uses less digits than its factorization.

102121166211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051426.

The product of its (nonzero) digits is 288, while the sum is 24.

Adding to 102121166211 its reverse (112661121201), we get a palindrome (214782287412).

The spelling of 102121166211 in words is "one hundred two billion, one hundred twenty-one million, one hundred sixty-six thousand, two hundred eleven".