102121120222222 has 64 divisors (see below), whose sum is σ = 161828838420480. Its totient is φ = 48237255690624.

The previous prime is 102121120222183. The next prime is 102121120222223. The reversal of 102121120222222 is 222222021121201.

It is a junction number, because it is equal to n+sod(n) for n = 102121120222193 and 102121120222202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121120222223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7345250923 + ... + 7345264825.

It is an arithmetic number, because the mean of its divisors is an integer number (2528575600320).

Almost surely, 2^{102121120222222} is an apocalyptic number.

102121120222222 is a deficient number, since it is larger than the sum of its proper divisors (59707718198258).

102121120222222 is a wasteful number, since it uses less digits than its factorization.

102121120222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20137.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 102121120222222 its reverse (222222021121201), we get a palindrome (324343141343423).

The spelling of 102121120222222 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred twenty million, two hundred twenty-two thousand, two hundred twenty-two".