1032220121 has 4 divisors (see below), whose sum is σ = 1044656592. Its totient is φ = 1019783652.

The previous prime is 1032220097. The next prime is 1032220177. The reversal of 1032220121 is 1210222301.

It is a happy number.

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: 1210222301 = 5413 ⋅223577.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1032220121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1032220096 and 1032220105.

It is not an unprimeable number, because it can be changed into a prime (1032220621) 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, 6218111 + ... + 6218276.

It is an arithmetic number, because the mean of its divisors is an integer number (261164148).

Almost surely, 2^1032220121 is an apocalyptic number.

It is an amenable number.

1032220121 is a deficient number, since it is larger than the sum of its proper divisors (12436471).

1032220121 is an equidigital number, since it uses as much as digits as its factorization.

1032220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12436470.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1032220121 is about 32128.1826594658. The cubic root of 1032220121 is about 1010.6267132837.

Adding to 1032220121 its reverse (1210222301), we get a palindrome (2242442422).

The spelling of 1032220121 in words is "one billion, thirty-two million, two hundred twenty thousand, one hundred twenty-one".