102121112211222 has 64 divisors (see below), whose sum is σ = 231557796933120. Its totient is φ = 29764478225664.

The previous prime is 102121112211199. The next prime is 102121112211229. The reversal of 102121112211222 is 222112211121201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121112211229) 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, 8016463 + ... + 16386149.

It is an arithmetic number, because the mean of its divisors is an integer number (3618090577080).

Almost surely, 2^{102121112211222} is an apocalyptic number.

102121112211222 is an abundant number, since it is smaller than the sum of its proper divisors (129436684721898).

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

102121112211222 is a wasteful number, since it uses less digits than its factorization.

102121112211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8377957.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 102121112211222 its reverse (222112211121201), we get a palindrome (324233323332423).

The spelling of 102121112211222 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred twelve million, two hundred eleven thousand, two hundred twenty-two".