4205212354451 has 4 divisors (see below), whose sum is σ = 4205225354352. Its totient is φ = 4205199354552.

The previous prime is 4205212354403. The next prime is 4205212354463. The reversal of 4205212354451 is 1544532125024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4205212354451 - 2¹⁰ = 4205212353427 is a prime.

It is a super-2 number, since 2×4205212354451² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4205212354351) 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, 6002015 + ... + 6665928.

It is an arithmetic number, because the mean of its divisors is an integer number (1051306338588).

Almost surely, 2^{4205212354451} is an apocalyptic number.

4205212354451 is a deficient number, since it is larger than the sum of its proper divisors (12999901).

4205212354451 is a wasteful number, since it uses less digits than its factorization.

4205212354451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12999900.

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 4205212354451 its reverse (1544532125024), we get a palindrome (5749744479475).

The spelling of 4205212354451 in words is "four trillion, two hundred five billion, two hundred twelve million, three hundred fifty-four thousand, four hundred fifty-one".