21433434022 has 128 divisors (see below), whose sum is σ = 44369031168. Its totient is φ = 7495286400.

The previous prime is 21433433993. The next prime is 21433434023. The reversal of 21433434022 is 22043433412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21433434023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26427997 + ... + 26428807.

It is an arithmetic number, because the mean of its divisors is an integer number (346633056).

Almost surely, 2^21433434022 is an apocalyptic number.

21433434022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21433434022 is an abundant number, since it is smaller than the sum of its proper divisors (22935597146).

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

21433434022 is a wasteful number, since it uses less digits than its factorization.

21433434022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 21433434022 its reverse (22043433412), we get a palindrome (43476867434).

The spelling of 21433434022 in words is "twenty-one billion, four hundred thirty-three million, four hundred thirty-four thousand, twenty-two".