1022121433 has 4 divisors (see below), whose sum is σ = 1023937488. Its totient is φ = 1020305380.

The previous prime is 1022121421. The next prime is 1022121437. The reversal of 1022121433 is 3341212201.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022121433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022121433.

It is not an unprimeable number, because it can be changed into a prime (1022121437) 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, 907183 + ... + 908308.

It is an arithmetic number, because the mean of its divisors is an integer number (255984372).

Almost surely, 2^1022121433 is an apocalyptic number.

It is an amenable number.

1022121433 is a deficient number, since it is larger than the sum of its proper divisors (1816055).

1022121433 is an equidigital number, since it uses as much as digits as its factorization.

1022121433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816054.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1022121433 is about 31970.6339161425. The cubic root of 1022121433 is about 1007.3200964419.

Adding to 1022121433 its reverse (3341212201), we get a palindrome (4363333634).

The spelling of 1022121433 in words is "one billion, twenty-two million, one hundred twenty-one thousand, four hundred thirty-three".