42424151001021 has 12 divisors (see below), whose sum is σ = 61533600302460. Its totient is φ = 28165411451520.

The previous prime is 42424151001013. The next prime is 42424151001061. The reversal of 42424151001021 is 12010015142424.

42424151001021 is a `hidden beast` number, since 4 + 2 + 4 + 2 + 41 + 510 + 0 + 102 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 39157420092921 + 3266730908100 = 6257589^2 + 1807410^2 .

It is not a de Polignac number, because 42424151001021 - 2³ = 42424151001013 is a prime.

It is a super-2 number, since 2×42424151001021² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42424151001061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9779654586 + ... + 9779658923.

It is an arithmetic number, because the mean of its divisors is an integer number (5127800025205).

Almost surely, 2^{42424151001021} is an apocalyptic number.

It is an amenable number.

42424151001021 is a deficient number, since it is larger than the sum of its proper divisors (19109449301439).

42424151001021 is a wasteful number, since it uses less digits than its factorization.

42424151001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19559313756 (or 19559313753 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

Adding to 42424151001021 its reverse (12010015142424), we get a palindrome (54434166143445).

The spelling of 42424151001021 in words is "forty-two trillion, four hundred twenty-four billion, one hundred fifty-one million, one thousand, twenty-one".