101221022312 has 32 divisors (see below), whose sum is σ = 190809538920. Its totient is φ = 50338632960.

The previous prime is 101221022303. The next prime is 101221022333. The reversal of 101221022312 is 213220122101.

It can be written as a sum of positive squares in 4 ways, for example, as 67384891396 + 33836130916 = 259586^2 + 183946^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6859262 + ... + 6874002.

Almost surely, 2^101221022312 is an apocalyptic number.

It is an amenable number.

101221022312 is a deficient number, since it is larger than the sum of its proper divisors (89588516608).

101221022312 is a wasteful number, since it uses less digits than its factorization.

101221022312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19301 (or 19297 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 101221022312 its reverse (213220122101), we get a palindrome (314441144413).

The spelling of 101221022312 in words is "one hundred one billion, two hundred twenty-one million, twenty-two thousand, three hundred twelve".