1042214521 has 4 divisors (see below), whose sum is σ = 1066452112. Its totient is φ = 1017976932.

The previous prime is 1042214489. The next prime is 1042214539. The reversal of 1042214521 is 1254122401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1254122401 = 7 ⋅179160343.

It is a cyclic number.

It is not a de Polignac number, because 1042214521 - 2⁵ = 1042214489 is a prime.

It is a super-2 number, since 2×1042214521² = 2172422215566518882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1042214492 and 1042214501.

It is not an unprimeable number, because it can be changed into a prime (1042214021) 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, 12118731 + ... + 12118816.

It is an arithmetic number, because the mean of its divisors is an integer number (266613028).

Almost surely, 2^1042214521 is an apocalyptic number.

It is an amenable number.

1042214521 is a deficient number, since it is larger than the sum of its proper divisors (24237591).

1042214521 is an equidigital number, since it uses as much as digits as its factorization.

1042214521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24237590.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1042214521 is about 32283.3474255691. The cubic root of 1042214521 is about 1013.8780166872.

Adding to 1042214521 its reverse (1254122401), we get a palindrome (2296336922).

The spelling of 1042214521 in words is "one billion, forty-two million, two hundred fourteen thousand, five hundred twenty-one".