22146454100 has 36 divisors (see below), whose sum is σ = 48323357628. Its totient is φ = 8809632000.

The previous prime is 22146454091. The next prime is 22146454103. The reversal of 22146454100 is 145464122.

It can be written as a sum of positive squares in 6 ways, for example, as 11222859844 + 10923594256 = 105938^2 + 104516^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22146454103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 593681 + ... + 629880.

Almost surely, 2^22146454100 is an apocalyptic number.

22146454100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22146454100 is an abundant number, since it is smaller than the sum of its proper divisors (26176903528).

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

22146454100 is a wasteful number, since it uses less digits than its factorization.

22146454100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223756 (or 1223749 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The spelling of 22146454100 in words is "twenty-two billion, one hundred forty-six million, four hundred fifty-four thousand, one hundred".