1022021102 has 4 divisors (see below), whose sum is σ = 1533031656. Its totient is φ = 511010550.

The previous prime is 1022021089. The next prime is 1022021111. The reversal of 1022021102 is 2011202201.

It is a happy number.

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

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, 255505274 + ... + 255505277.

It is an arithmetic number, because the mean of its divisors is an integer number (383257914).

Almost surely, 2^1022021102 is an apocalyptic number.

1022021102 is a deficient number, since it is larger than the sum of its proper divisors (511010554).

1022021102 is an equidigital number, since it uses as much as digits as its factorization.

1022021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511010553.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1022021102 is about 31969.0647658013. The cubic root of 1022021102 is about 1007.2871359943.

Adding to 1022021102 its reverse (2011202201), we get a palindrome (3033223303).

The spelling of 1022021102 in words is "one billion, twenty-two million, twenty-one thousand, one hundred two".