1010121200 has 120 divisors (see below), whose sum is σ = 2674824336. Its totient is φ = 363520000.

The previous prime is 1010121197. The next prime is 1010121271. The reversal of 1010121200 is 21210101.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 443264 + ... + 445536.

Almost surely, 2^1010121200 is an apocalyptic number.

1010121200 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 1010121200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1337412168).

1010121200 is an abundant number, since it is smaller than the sum of its proper divisors (1664703136).

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

1010121200 is a wasteful number, since it uses less digits than its factorization.

1010121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403 (or 2392 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1010121200 is about 31782.4039367698. The cubic root of 1010121200 is about 1003.3624148282.

Adding to 1010121200 its reverse (21210101), we get a palindrome (1031331301).

The spelling of 1010121200 in words is "one billion, ten million, one hundred twenty-one thousand, two hundred".