1401021022 has 4 divisors (see below), whose sum is σ = 2101531536. Its totient is φ = 700510510.

The previous prime is 1401021019. The next prime is 1401021053. The reversal of 1401021022 is 2201201041.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1401020993 and 1401021011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350255254 + ... + 350255257.

It is an arithmetic number, because the mean of its divisors is an integer number (525382884).

Almost surely, 2^1401021022 is an apocalyptic number.

1401021022 is a deficient number, since it is larger than the sum of its proper divisors (700510514).

1401021022 is an equidigital number, since it uses as much as digits as its factorization.

1401021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700510513.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1401021022 is about 37430.2153613895. The cubic root of 1401021022 is about 1118.9608298106.

Adding to 1401021022 its reverse (2201201041), we get a palindrome (3602222063).

The spelling of 1401021022 in words is "one billion, four hundred one million, twenty-one thousand, twenty-two".