1021122102 has 256 divisors, whose sum is σ = 2964584448. Its totient is φ = 225607680.

The previous prime is 1021122101. The next prime is 1021122107. The reversal of 1021122102 is 2012211201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021122101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7453378 + ... + 7453514.

It is an arithmetic number, because the mean of its divisors is an integer number (11580408).

Almost surely, 2^1021122102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021122102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1482292224).

1021122102 is an abundant number, since it is smaller than the sum of its proper divisors (1943462346).

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

1021122102 is a wasteful number, since it uses less digits than its factorization.

1021122102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1021122102 is about 31955.0012048193. The cubic root of 1021122102 is about 1006.9917028309.

Adding to 1021122102 its reverse (2012211201), we get a palindrome (3033333303).

It can be divided in two parts, 10 and 21122102, that added together give a palindrome (21122112).

The spelling of 1021122102 in words is "one billion, twenty-one million, one hundred twenty-two thousand, one hundred two".