20434140222 has 16 divisors (see below), whose sum is σ = 40871313552. Its totient is φ = 6810874560.

The previous prime is 20434140173. The next prime is 20434140271. The reversal of 20434140222 is 22204143402.

It is an interprime number because it is at equal distance from previous prime (20434140173) and next prime (20434140271).

It is a super-2 number, since 2×20434140222² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20434140192 and 20434140201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33553 + ... + 204924.

It is an arithmetic number, because the mean of its divisors is an integer number (2554457097).

Almost surely, 2^20434140222 is an apocalyptic number.

20434140222 is an abundant number, since it is smaller than the sum of its proper divisors (20437173330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20434140222 is a wasteful number, since it uses less digits than its factorization.

20434140222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252763.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20434140222 its reverse (22204143402), we get a palindrome (42638283624).

The spelling of 20434140222 in words is "twenty billion, four hundred thirty-four million, one hundred forty thousand, two hundred twenty-two".