22152002154 has 32 divisors (see below), whose sum is σ = 44834385600. Its totient is φ = 7295904000.

The previous prime is 22152002153. The next prime is 22152002183. The reversal of 22152002154 is 45120025122.

It is a super-2 number, since 2×22152002154² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22152002153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260322 + ... + 334770.

It is an arithmetic number, because the mean of its divisors is an integer number (1401074550).

Almost surely, 2^22152002154 is an apocalyptic number.

22152002154 is an abundant number, since it is smaller than the sum of its proper divisors (22682383446).

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

22152002154 is a wasteful number, since it uses less digits than its factorization.

22152002154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75046.

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 22152002154 its reverse (45120025122), we get a palindrome (67272027276).

The spelling of 22152002154 in words is "twenty-two billion, one hundred fifty-two million, two thousand, one hundred fifty-four".