421221202122124 has 24 divisors (see below), whose sum is σ = 775934503464960. Its totient is φ = 199525649991696.

The previous prime is 421221202122103. The next prime is 421221202122151.

It is a happy number.

421221202122124 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×421221202122124² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421221202122092 and 421221202122101.

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, 119341269 + ... + 122820115.

It is an arithmetic number, because the mean of its divisors is an integer number (32330604311040).

Almost surely, 2^{421221202122124} is an apocalyptic number.

It is an amenable number.

421221202122124 is a deficient number, since it is larger than the sum of its proper divisors (354713301342836).

421221202122124 is a wasteful number, since it uses less digits than its factorization.

421221202122124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5072037 (or 5072035 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

It can be divided in two parts, 42122120 and 2122124, that added together give a palindrome (44244244).

The spelling of 421221202122124 in words is "four hundred twenty-one trillion, two hundred twenty-one billion, two hundred two million, one hundred twenty-two thousand, one hundred twenty-four".