102211212222222 has 64 divisors (see below), whose sum is σ = 221055890033664. Its totient is φ = 31383525288960.

The previous prime is 102211212222209. The next prime is 102211212222233. The reversal of 102211212222222 is 222222212112201.

It is a happy number.

It is a super-2 number, since 2×102211212222222² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102211212222192 and 102211212222201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 441128733 + ... + 441360375.

It is an arithmetic number, because the mean of its divisors is an integer number (3453998281776).

Almost surely, 2^{102211212222222} is an apocalyptic number.

102211212222222 is an abundant number, since it is smaller than the sum of its proper divisors (118844677811442).

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

102211212222222 is a wasteful number, since it uses less digits than its factorization.

102211212222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323753.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 102211212222222 its reverse (222222212112201), we get a palindrome (324433424334423).

The spelling of 102211212222222 in words is "one hundred two trillion, two hundred eleven billion, two hundred twelve million, two hundred twenty-two thousand, two hundred twenty-two".