1022452100 has 72 divisors (see below), whose sum is σ = 2294103168. Its totient is φ = 395305600.

The previous prime is 1022452099. The next prime is 1022452103. The reversal of 1022452100 is 12542201.

It is not an unprimeable number, because it can be changed into a prime (1022452103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 388790 + ... + 391410.

It is an arithmetic number, because the mean of its divisors is an integer number (31862544).

Almost surely, 2^1022452100 is an apocalyptic number.

1022452100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022452100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1147051584).

1022452100 is an abundant number, since it is smaller than the sum of its proper divisors (1271651068).

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

1022452100 is a wasteful number, since it uses less digits than its factorization.

1022452100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2765 (or 2758 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1022452100 is about 31975.8049155920. The cubic root of 1022452100 is about 1007.4287109342.

Adding to 1022452100 its reverse (12542201), we get a palindrome (1034994301).

The spelling of 1022452100 in words is "one billion, twenty-two million, four hundred fifty-two thousand, one hundred".