21160201522342 has 16 divisors (see below), whose sum is σ = 32764590375552. Its totient is φ = 10238679884160.

The previous prime is 21160201522321. The next prime is 21160201522351. The reversal of 21160201522342 is 24322510206112.

It is a happy number.

It is a super-2 number, since 2×21160201522342² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3004078 + ... + 7165534.

It is an arithmetic number, because the mean of its divisors is an integer number (2047786898472).

Almost surely, 2^{21160201522342} is an apocalyptic number.

21160201522342 is a deficient number, since it is larger than the sum of its proper divisors (11604388853210).

21160201522342 is a wasteful number, since it uses less digits than its factorization.

21160201522342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4243503.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 21160201522342 its reverse (24322510206112), we get a palindrome (45482711728454).

The spelling of 21160201522342 in words is "twenty-one trillion, one hundred sixty billion, two hundred one million, five hundred twenty-two thousand, three hundred forty-two".