100012222012021 has 32 divisors (see below), whose sum is σ = 110399405880960. Its totient is φ = 89844571008000.

The previous prime is 100012222011979. The next prime is 100012222012123. The reversal of 100012222012021 is 120210222210001.

It is a happy number.

It is not a de Polignac number, because 100012222012021 - 2¹³ = 100012222003829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100012222011986 and 100012222012004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100012222012421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1282547185 + ... + 1282625161.

It is an arithmetic number, because the mean of its divisors is an integer number (3449981433780).

Almost surely, 2^{100012222012021} is an apocalyptic number.

100012222012021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100012222012021 is a deficient number, since it is larger than the sum of its proper divisors (10387183868939).

100012222012021 is a wasteful number, since it uses less digits than its factorization.

100012222012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80325.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 100012222012021 its reverse (120210222210001), we get a palindrome (220222444222022).

The spelling of 100012222012021 in words is "one hundred trillion, twelve billion, two hundred twenty-two million, twelve thousand, twenty-one".