102121222 has 8 divisors (see below), whose sum is σ = 175064976. Its totient is φ = 43766232.

The previous prime is 102121213. The next prime is 102121231. The reversal of 102121222 is 222121201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (102121213) and next prime (102121231).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3647173 + ... + 3647200.

It is an arithmetic number, because the mean of its divisors is an integer number (21883122).

Almost surely, 2^102121222 is an apocalyptic number.

102121222 is a deficient number, since it is larger than the sum of its proper divisors (72943754).

102121222 is an equidigital number, since it uses as much as digits as its factorization.

102121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7294382.

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

The square root of 102121222 is about 10105.5045396061. The cubic root of 102121222 is about 467.4178940139.

Adding to 102121222 its reverse (222121201), we get a palindrome (324242423).

The spelling of 102121222 in words is "one hundred two million, one hundred twenty-one thousand, two hundred twenty-two".