2154202044211 has 16 divisors (see below), whose sum is σ = 2489387298048. Its totient is φ = 1825922412000.

The previous prime is 2154202044179. The next prime is 2154202044283. The reversal of 2154202044211 is 1124402024512.

It is a cyclic number.

It is not a de Polignac number, because 2154202044211 - 2⁵ = 2154202044179 is a prime.

It is a super-2 number, since 2×2154202044211² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2154202044211.

It is not an unprimeable number, because it can be changed into a prime (2154202044311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1305145 + ... + 2451898.

It is an arithmetic number, because the mean of its divisors is an integer number (155586706128).

Almost surely, 2^{2154202044211} is an apocalyptic number.

2154202044211 is a deficient number, since it is larger than the sum of its proper divisors (335185253837).

2154202044211 is a wasteful number, since it uses less digits than its factorization.

2154202044211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3757962.

The product of its (nonzero) digits is 5120, while the sum is 28.

Adding to 2154202044211 its reverse (1124402024512), we get a palindrome (3278604068723).

The spelling of 2154202044211 in words is "two trillion, one hundred fifty-four billion, two hundred two million, forty-four thousand, two hundred eleven".