22142142100 has 72 divisors (see below), whose sum is σ = 54467937440. Its totient is φ = 7745258880.

The previous prime is 22142142007. The next prime is 22142142131. The reversal of 22142142100 is 124124122.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 423522 + ... + 472921.

Almost surely, 2^22142142100 is an apocalyptic number.

22142142100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22142142100 is an abundant number, since it is smaller than the sum of its proper divisors (32325795340).

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

22142142100 is a wasteful number, since it uses less digits than its factorization.

22142142100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896489 (or 896482 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22142142100 its reverse (124124122), we get a palindrome (22266266222).

The spelling of 22142142100 in words is "twenty-two billion, one hundred forty-two million, one hundred forty-two thousand, one hundred".