20122401366 has 12 divisors (see below), whose sum is σ = 43598536332. Its totient is φ = 6707467116.

The previous prime is 20122401359. The next prime is 20122401367. The reversal of 20122401366 is 66310422102.

20122401366 is a `hidden beast` number, since 201 + 22 + 401 + 36 + 6 = 666.

It is a super-2 number, since 2×20122401366² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122401367) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 558955576 + ... + 558955611.

It is an arithmetic number, because the mean of its divisors is an integer number (3633211361).

Almost surely, 2^20122401366 is an apocalyptic number.

20122401366 is an abundant number, since it is smaller than the sum of its proper divisors (23476134966).

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

20122401366 is a wasteful number, since it uses less digits than its factorization.

20122401366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117911195 (or 1117911192 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 20122401366 its reverse (66310422102), we get a palindrome (86432823468).

The spelling of 20122401366 in words is "twenty billion, one hundred twenty-two million, four hundred one thousand, three hundred sixty-six".