122142421402443 has 48 divisors (see below), whose sum is σ = 196556024857920. Its totient is φ = 72570838540032.

The previous prime is 122142421402423. The next prime is 122142421402493. The reversal of 122142421402443 is 344204124241221.

122142421402443 is a `hidden beast` number, since 1 + 2 + 2 + 1 + 4 + 242 + 1 + 402 + 4 + 4 + 3 = 666.

It is not a de Polignac number, because 122142421402443 - 2¹³ = 122142421394251 is a prime.

It is a super-2 number, since 2×122142421402443² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122142421402398 and 122142421402407.

It is not an unprimeable number, because it can be changed into a prime (122142421402423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 139160721 + ... + 140035677.

It is an arithmetic number, because the mean of its divisors is an integer number (4094917184540).

Almost surely, 2^{122142421402443} is an apocalyptic number.

122142421402443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

122142421402443 is a deficient number, since it is larger than the sum of its proper divisors (74413603455477).

122142421402443 is a wasteful number, since it uses less digits than its factorization.

122142421402443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916148 (or 916145 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 36.

Adding to 122142421402443 its reverse (344204124241221), we get a palindrome (466346545643664).

The spelling of 122142421402443 in words is "one hundred twenty-two trillion, one hundred forty-two billion, four hundred twenty-one million, four hundred two thousand, four hundred forty-three".