101221210202012 has 12 divisors (see below), whose sum is σ = 177431855158656. Its totient is φ = 50526394442400.

The previous prime is 101221210202011. The next prime is 101221210202017. The reversal of 101221210202012 is 210202012122101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221210202011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21052661948 + ... + 21052666755.

It is an arithmetic number, because the mean of its divisors is an integer number (14785987929888).

Almost surely, 2^{101221210202012} is an apocalyptic number.

It is an amenable number.

101221210202012 is a deficient number, since it is larger than the sum of its proper divisors (76210644956644).

101221210202012 is a wasteful number, since it uses less digits than its factorization.

101221210202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42105329308 (or 42105329306 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101221210202012 its reverse (210202012122101), we get a palindrome (311423222324113).

The spelling of 101221210202012 in words is "one hundred one trillion, two hundred twenty-one billion, two hundred ten million, two hundred two thousand, twelve".