102220100202212 has 6 divisors (see below), whose sum is σ = 178885175353878. Its totient is φ = 51110050101104.

The previous prime is 102220100202203. The next prime is 102220100202251. The reversal of 102220100202212 is 212202001022201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 101852177889856 + 367922312356 = 10092184^2 + 606566^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12777512525273 + ... + 12777512525280.

It is an arithmetic number, because the mean of its divisors is an integer number (29814195892313).

Almost surely, 2^{102220100202212} is an apocalyptic number.

It is an amenable number.

102220100202212 is a deficient number, since it is larger than the sum of its proper divisors (76665075151666).

102220100202212 is a wasteful number, since it uses less digits than its factorization.

102220100202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25555025050557 (or 25555025050555 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 102220100202212 its reverse (212202001022201), we get a palindrome (314422101224413).

The spelling of 102220100202212 in words is "one hundred two trillion, two hundred twenty billion, one hundred million, two hundred two thousand, two hundred twelve".