1021244122 has 8 divisors (see below), whose sum is σ = 1532127636. Its totient is φ = 510534912.

The previous prime is 1021244099. The next prime is 1021244123. The reversal of 1021244122 is 2214421201.

It can be written as a sum of positive squares in 2 ways, for example, as 1020738601 + 505521 = 31949^2 + 711^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1021244122.

It is not an unprimeable number, because it can be changed into a prime (1021244123) 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, 27783 + ... + 53050.

Almost surely, 2^1021244122 is an apocalyptic number.

1021244122 is a deficient number, since it is larger than the sum of its proper divisors (510883514).

1021244122 is an equidigital number, since it uses as much as digits as its factorization.

1021244122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87152.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1021244122 is about 31956.9103950930. The cubic root of 1021244122 is about 1007.0318117247.

Adding to 1021244122 its reverse (2214421201), we get a palindrome (3235665323).

The spelling of 1021244122 in words is "one billion, twenty-one million, two hundred forty-four thousand, one hundred twenty-two".