1142621022 has 16 divisors (see below), whose sum is σ = 2323975680. Its totient is φ = 374418072.

The previous prime is 1142621021. The next prime is 1142621023. The reversal of 1142621022 is 2201262411.

It is an interprime number because it is at equal distance from previous prime (1142621021) and next prime (1142621023).

It is a self number, because there is not a number n which added to its sum of digits gives 1142621022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142621021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1613518 + ... + 1614225.

It is an arithmetic number, because the mean of its divisors is an integer number (145248480).

Almost surely, 2^1142621022 is an apocalyptic number.

1142621022 is an abundant number, since it is smaller than the sum of its proper divisors (1181354658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1142621022 is a wasteful number, since it uses less digits than its factorization.

1142621022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3227807.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1142621022 is about 33802.6777341677. The cubic root of 1142621022 is about 1045.4439089900.

Adding to 1142621022 its reverse (2201262411), we get a palindrome (3343883433).

The spelling of 1142621022 in words is "one billion, one hundred forty-two million, six hundred twenty-one thousand, twenty-two".