2101211454224 has 20 divisors (see below), whose sum is σ = 4071309681036. Its totient is φ = 1050550891392.

The previous prime is 2101211454169. The next prime is 2101211454229. The reversal of 2101211454224 is 4224541121012.

It can be written as a sum of positive squares in 2 ways, for example, as 1654907290624 + 446304163600 = 1286432^2 + 668060^2 .

It is not an unprimeable number, because it can be changed into a prime (2101211454229) 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, 3110219 + ... + 3725034.

Almost surely, 2^{2101211454224} is an apocalyptic number.

It is an amenable number.

2101211454224 is a deficient number, since it is larger than the sum of its proper divisors (1970098226812).

2101211454224 is a wasteful number, since it uses less digits than its factorization.

2101211454224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6854474 (or 6854468 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

Adding to 2101211454224 its reverse (4224541121012), we get a palindrome (6325752575236).

The spelling of 2101211454224 in words is "two trillion, one hundred one billion, two hundred eleven million, four hundred fifty-four thousand, two hundred twenty-four".