100021101221012 has 12 divisors (see below), whose sum is σ = 175037440013940. Its totient is φ = 50010404074176.

The previous prime is 100021101220949. The next prime is 100021101221039. The reversal of 100021101221012 is 210122101120001.

It can be written as a sum of positive squares in 2 ways, for example, as 39536479142416 + 60484622078596 = 6287804^2 + 7777186^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35091083 + ... + 37834194.

It is an arithmetic number, because the mean of its divisors is an integer number (14586453334495).

Almost surely, 2^{100021101221012} is an apocalyptic number.

It is an amenable number.

100021101221012 is a deficient number, since it is larger than the sum of its proper divisors (75016338792928).

100021101221012 is a wasteful number, since it uses less digits than its factorization.

100021101221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73268170 (or 73268168 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 100021101221012 its reverse (210122101120001), we get a palindrome (310143202341013).

The spelling of 100021101221012 in words is "one hundred trillion, twenty-one billion, one hundred one million, two hundred twenty-one thousand, twelve".