1022145102 has 64 divisors (see below), whose sum is σ = 2500819200. Its totient is φ = 306879840.

The previous prime is 1022145101. The next prime is 1022145133. The reversal of 1022145102 is 2015412201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022145101) 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 31 ways as a sum of consecutive naturals, for example, 56853 + ... + 72639.

It is an arithmetic number, because the mean of its divisors is an integer number (39075300).

Almost surely, 2^1022145102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022145102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1250409600).

1022145102 is an abundant number, since it is smaller than the sum of its proper divisors (1478674098).

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

1022145102 is a wasteful number, since it uses less digits than its factorization.

1022145102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15918 (or 15912 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1022145102 is about 31971.0040818239. The cubic root of 1022145102 is about 1007.3278717983.

Adding to 1022145102 its reverse (2015412201), we get a palindrome (3037557303).

The spelling of 1022145102 in words is "one billion, twenty-two million, one hundred forty-five thousand, one hundred two".