1022122421 has 8 divisors (see below), whose sum is σ = 1069549824. Its totient is φ = 975598560.

The previous prime is 1022122397. The next prime is 1022122459. The reversal of 1022122421 is 1242212201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1022122421 - 2⁶ = 1022122357 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 1022122421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022122021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223571 + ... + 228096.

It is an arithmetic number, because the mean of its divisors is an integer number (133693728).

Almost surely, 2^1022122421 is an apocalyptic number.

It is an amenable number.

1022122421 is a deficient number, since it is larger than the sum of its proper divisors (47427403).

1022122421 is an equidigital number, since it uses as much as digits as its factorization.

1022122421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451771.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1022122421 is about 31970.6493678186. The cubic root of 1022122421 is about 1007.3204210060.

Adding to 1022122421 its reverse (1242212201), we get a palindrome (2264334622).

The spelling of 1022122421 in words is "one billion, twenty-two million, one hundred twenty-two thousand, four hundred twenty-one".