221412432100412 has 24 divisors (see below), whose sum is σ = 442906251174240. Its totient is φ = 94873602263040.

The previous prime is 221412432100411. The next prime is 221412432100423. The reversal of 221412432100412 is 214001234214122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221412432100411) 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, 726514337 + ... + 726819032.

It is an arithmetic number, because the mean of its divisors is an integer number (18454427132260).

Almost surely, 2^{221412432100412} is an apocalyptic number.

It is an amenable number.

221412432100412 is an abundant number, since it is smaller than the sum of its proper divisors (221493819073828).

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

221412432100412 is a wasteful number, since it uses less digits than its factorization.

221412432100412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453338821 (or 1453338819 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 221412432100412 its reverse (214001234214122), we get a palindrome (435413666314534).

The spelling of 221412432100412 in words is "two hundred twenty-one trillion, four hundred twelve billion, four hundred thirty-two million, one hundred thousand, four hundred twelve".