1022121423 has 14 divisors (see below), whose sum is σ = 1532482184. Its totient is φ = 681413796.

The previous prime is 1022121421. The next prime is 1022121437. The reversal of 1022121423 is 3241212201.

It is a happy number.

1022121423 is a `hidden beast` number, since 1 + 0 + 221 + 21 + 423 = 666.

It is not a de Polignac number, because 1022121423 - 2¹ = 1022121421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022121396 and 1022121405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022121421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 700315 + ... + 701772.

Almost surely, 2^1022121423 is an apocalyptic number.

1022121423 is a deficient number, since it is larger than the sum of its proper divisors (510360761).

1022121423 is an frugal number, since it uses more digits than its factorization.

1022121423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402105 (or 1402090 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1022121423 is about 31970.6337597490. The cubic root of 1022121423 is about 1007.3200931568.

Adding to 1022121423 its reverse (3241212201), we get a palindrome (4263333624).

The spelling of 1022121423 in words is "one billion, twenty-two million, one hundred twenty-one thousand, four hundred twenty-three".