2153122203206 has 16 divisors (see below), whose sum is σ = 3598055672400. Its totient is φ = 959481511968.

The previous prime is 2153122203181. The next prime is 2153122203209. The reversal of 2153122203206 is 6023022213512.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153122203209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1427799116 + ... + 1427800623.

It is an arithmetic number, because the mean of its divisors is an integer number (224878479525).

Almost surely, 2^{2153122203206} is an apocalyptic number.

2153122203206 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2153122203206 is a deficient number, since it is larger than the sum of its proper divisors (1444933469194).

2153122203206 is a wasteful number, since it uses less digits than its factorization.

2153122203206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2855599783.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 2153122203206 its reverse (6023022213512), we get a palindrome (8176144416718).

The spelling of 2153122203206 in words is "two trillion, one hundred fifty-three billion, one hundred twenty-two million, two hundred three thousand, two hundred six".