1200211002 has 24 divisors (see below), whose sum is σ = 2625708384.
Its totient is φ = 396185544.
The previous prime is 1200210983. The next prime is 1200211003. The reversal of 1200211002 is 2001120021.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is not an unprimeable number, because it can be changed into a prime (1200211003) 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, 321828 + ... + 325535.
It is an arithmetic number, because the mean of its divisors is an integer number (109404516).
Almost surely, 21200211002 is an apocalyptic number.
1200211002 is an abundant number, since it is smaller than the sum of its proper divisors (1425497382).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1200211002 is a wasteful number, since it uses less digits than its factorization.
1200211002 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 647474 (or 647471 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 9.
The square root of 1200211002 is about 34644.0615690482.
The cubic root of 1200211002 is about 1062.7208497222.
Adding to 1200211002 its reverse (2001120021), we get a palindrome (3201331023).
The spelling of 1200211002 in words is "one billion, two hundred million, two hundred eleven thousand, two".