20002221112 has 8 divisors (see below), whose sum is σ = 37504164600. Its totient is φ = 10001110552.

The previous prime is 20002221103. The next prime is 20002221121. The reversal of 20002221112 is 21112220002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20002221103) and next prime (20002221121).

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 20002221092 and 20002221101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250138812 + ... + 1250138827.

It is an arithmetic number, because the mean of its divisors is an integer number (4688020575).

Almost surely, 2^20002221112 is an apocalyptic number.

It is an amenable number.

20002221112 is a deficient number, since it is larger than the sum of its proper divisors (17501943488).

20002221112 is a wasteful number, since it uses less digits than its factorization.

20002221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500277645 (or 2500277641 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20002221112 its reverse (21112220002), we get a palindrome (41114441114).

The spelling of 20002221112 in words is "twenty billion, two million, two hundred twenty-one thousand, one hundred twelve".