2154402001122 has 24 divisors (see below), whose sum is σ = 5012282207376. Its totient is φ = 615543428808.

The previous prime is 2154402001079. The next prime is 2154402001159. The reversal of 2154402001122 is 2211002044512.

It is a junction number, because it is equal to n+sod(n) for n = 2154402001092 and 2154402001101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3663948688 + ... + 3663949275.

It is an arithmetic number, because the mean of its divisors is an integer number (208845091974).

Almost surely, 2^{2154402001122} is an apocalyptic number.

2154402001122 is an abundant number, since it is smaller than the sum of its proper divisors (2857880206254).

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

2154402001122 is a wasteful number, since it uses less digits than its factorization.

2154402001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7327897982 (or 7327897975 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 2154402001122 its reverse (2211002044512), we get a palindrome (4365404045634).

The spelling of 2154402001122 in words is "two trillion, one hundred fifty-four billion, four hundred two million, one thousand, one hundred twenty-two".