1021022102 has 4 divisors (see below), whose sum is σ = 1531533156. Its totient is φ = 510511050.

The previous prime is 1021022083. The next prime is 1021022113. The reversal of 1021022102 is 2012201201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2012201201 = 1493 ⋅1347757.

It is a super-2 number, since 2×1021022102² = 2084972265544996808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 255255524 + ... + 255255527.

It is an arithmetic number, because the mean of its divisors is an integer number (382883289).

Almost surely, 2^1021022102 is an apocalyptic number.

1021022102 is a deficient number, since it is larger than the sum of its proper divisors (510511054).

1021022102 is an equidigital number, since it uses as much as digits as its factorization.

1021022102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510511053.

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

The square root of 1021022102 is about 31953.4364662081. The cubic root of 1021022102 is about 1006.9588296948.

Adding to 1021022102 its reverse (2012201201), we get a palindrome (3033223303).

The spelling of 1021022102 in words is "one billion, twenty-one million, twenty-two thousand, one hundred two".