20002212043 has 4 divisors (see below), whose sum is σ = 21820594968. Its totient is φ = 18183829120.

The previous prime is 20002212023. The next prime is 20002212047. The reversal of 20002212043 is 34021220002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20002212043 is a prime.

It is a super-2 number, since 2×20002212043² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20002212047) 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, 909191446 + ... + 909191467.

It is an arithmetic number, because the mean of its divisors is an integer number (5455148742).

Almost surely, 2^20002212043 is an apocalyptic number.

20002212043 is a deficient number, since it is larger than the sum of its proper divisors (1818382925).

20002212043 is a wasteful number, since it uses less digits than its factorization.

20002212043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818382924.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20002212043 its reverse (34021220002), we get a palindrome (54023432045).

The spelling of 20002212043 in words is "twenty billion, two million, two hundred twelve thousand, forty-three".