1022121143 has 4 divisors (see below), whose sum is σ = 1023078360. Its totient is φ = 1021163928.

The previous prime is 1022121097. The next prime is 1022121151. The reversal of 1022121143 is 3411212201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1022121143 - 2⁸ = 1022120887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022121043) 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, 477005 + ... + 479142.

It is an arithmetic number, because the mean of its divisors is an integer number (255769590).

Almost surely, 2^1022121143 is an apocalyptic number.

1022121143 is a deficient number, since it is larger than the sum of its proper divisors (957217).

1022121143 is an equidigital number, since it uses as much as digits as its factorization.

1022121143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957216.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1022121143 is about 31970.6293807301. The cubic root of 1022121143 is about 1007.3200011750.

Adding to 1022121143 its reverse (3411212201), we get a palindrome (4433333344).

The spelling of 1022121143 in words is "one billion, twenty-two million, one hundred twenty-one thousand, one hundred forty-three".