2154100043422 has 8 divisors (see below), whose sum is σ = 3231170000856. Its totient is φ = 1077043376472.

The previous prime is 2154100043387. The next prime is 2154100043423. The reversal of 2154100043422 is 2243400014512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154100043423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2907028 + ... + 3571975.

It is an arithmetic number, because the mean of its divisors is an integer number (403896250107).

Almost surely, 2^{2154100043422} is an apocalyptic number.

2154100043422 is a deficient number, since it is larger than the sum of its proper divisors (1077069957434).

2154100043422 is a wasteful number, since it uses less digits than its factorization.

2154100043422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6645242.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 2154100043422 its reverse (2243400014512), we get a palindrome (4397500057934).

The spelling of 2154100043422 in words is "two trillion, one hundred fifty-four billion, one hundred million, forty-three thousand, four hundred twenty-two".