1035220100 has 36 divisors (see below), whose sum is σ = 2378574324. Its totient is φ = 389729280.

The previous prime is 1035220099. The next prime is 1035220103. The reversal of 1035220100 is 10225301.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 53824 + 1035166276 = 232^2 + 32174^2 .

It is not an unprimeable number, because it can be changed into a prime (1035220103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 302777 + ... + 306176.

It is an arithmetic number, because the mean of its divisors is an integer number (66071509).

Almost surely, 2^1035220100 is an apocalyptic number.

1035220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1035220100 is an abundant number, since it is smaller than the sum of its proper divisors (1343354224).

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

1035220100 is a wasteful number, since it uses less digits than its factorization.

1035220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608984 (or 608977 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1035220100 is about 32174.8364409207. The cubic root of 1035220100 is about 1011.6048400701.

Adding to 1035220100 its reverse (10225301), we get a palindrome (1045445401).

The spelling of 1035220100 in words is "one billion, thirty-five million, two hundred twenty thousand, one hundred".