20002232122 has 4 divisors (see below), whose sum is σ = 30003348186. Its totient is φ = 10001116060.

The previous prime is 20002232111. The next prime is 20002232123. The reversal of 20002232122 is 22123220002.

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

It can be written as a sum of positive squares in only one way, i.e., 17638230481 + 2364001641 = 132809^2 + 48621^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20002232096 and 20002232105.

It is not an unprimeable number, because it can be changed into a prime (20002232123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000558029 + ... + 5000558032.

Almost surely, 2^20002232122 is an apocalyptic number.

20002232122 is a deficient number, since it is larger than the sum of its proper divisors (10001116064).

20002232122 is a wasteful number, since it uses less digits than its factorization.

20002232122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10001116063.

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

Adding to 20002232122 its reverse (22123220002), we get a palindrome (42125452124).

The spelling of 20002232122 in words is "twenty billion, two million, two hundred thirty-two thousand, one hundred twenty-two".