102121222210 has 32 divisors (see below), whose sum is σ = 212157937152. Its totient is φ = 34666324800.

The previous prime is 102121222169. The next prime is 102121222213. The reversal of 102121222210 is 12222121201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102121222213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7215082 + ... + 7229221.

It is an arithmetic number, because the mean of its divisors is an integer number (6629935536).

Almost surely, 2^102121222210 is an apocalyptic number.

102121222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102121222210 is an abundant number, since it is smaller than the sum of its proper divisors (110036714942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102121222210 is a wasteful number, since it uses less digits than its factorization.

102121222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14444418.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102121222210 its reverse (12222121201), we get a palindrome (114343343411).

The spelling of 102121222210 in words is "one hundred two billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred ten".