42201430221131 has 4 divisors (see below), whose sum is σ = 42201446232192. Its totient is φ = 42201414210072.

The previous prime is 42201430221103. The next prime is 42201430221143. The reversal of 42201430221131 is 13112203410224.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42201430221131 is a prime.

It is a super-2 number, since 2×42201430221131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42201430221131.

It is not an unprimeable number, because it can be changed into a prime (42201430221191) 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, 3014780 + ... + 9669113.

It is an arithmetic number, because the mean of its divisors is an integer number (10550361558048).

Almost surely, 2^{42201430221131} is an apocalyptic number.

42201430221131 is a deficient number, since it is larger than the sum of its proper divisors (16011061).

42201430221131 is a wasteful number, since it uses less digits than its factorization.

42201430221131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16011060.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 42201430221131 its reverse (13112203410224), we get a palindrome (55313633631355).

The spelling of 42201430221131 in words is "forty-two trillion, two hundred one billion, four hundred thirty million, two hundred twenty-one thousand, one hundred thirty-one".