1012122200221 has 8 divisors (see below), whose sum is σ = 1169082327744. Its totient is φ = 865986909120.

The previous prime is 1012122200207. The next prime is 1012122200231. The reversal of 1012122200221 is 1220022212101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1012122200221 - 2³¹ = 1009974716573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012122200195 and 1012122200204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012122200231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2706208905 + ... + 2706209278.

It is an arithmetic number, because the mean of its divisors is an integer number (146135290968).

Almost surely, 2^{1012122200221} is an apocalyptic number.

1012122200221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1012122200221 is a deficient number, since it is larger than the sum of its proper divisors (156960127523).

1012122200221 is a wasteful number, since it uses less digits than its factorization.

1012122200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5412418211.

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

Adding to 1012122200221 its reverse (1220022212101), we get a palindrome (2232144412322).

The spelling of 1012122200221 in words is "one trillion, twelve billion, one hundred twenty-two million, two hundred thousand, two hundred twenty-one".