1051227121 has 32 divisors (see below), whose sum is σ = 1283401728. Its totient is φ = 841674240.

The previous prime is 1051227097. The next prime is 1051227127. The reversal of 1051227121 is 1217221501.

It is a cyclic number.

It is not a de Polignac number, because 1051227121 - 2⁷ = 1051226993 is a prime.

It is a super-2 number, since 2×1051227121² = 2210156919851897282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1051227092 and 1051227101.

It is not an unprimeable number, because it can be changed into a prime (1051227127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1295806 + ... + 1296616.

It is an arithmetic number, because the mean of its divisors is an integer number (40106304).

Almost surely, 2^1051227121 is an apocalyptic number.

It is an amenable number.

1051227121 is a deficient number, since it is larger than the sum of its proper divisors (232174607).

1051227121 is an equidigital number, since it uses as much as digits as its factorization.

1051227121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 1051227121 is about 32422.6328511427. The cubic root of 1051227121 is about 1016.7921522913.

Adding to 1051227121 its reverse (1217221501), we get a palindrome (2268448622).

The spelling of 1051227121 in words is "one billion, fifty-one million, two hundred twenty-seven thousand, one hundred twenty-one".