1200212211 has 32 divisors (see below), whose sum is σ = 1768025088. Its totient is φ = 718179840.

The previous prime is 1200212207. The next prime is 1200212231. The reversal of 1200212211 is 1122120021.

It is not a de Polignac number, because 1200212211 - 2² = 1200212207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1200212231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1368105 + ... + 1368981.

It is an arithmetic number, because the mean of its divisors is an integer number (55250784).

Almost surely, 2^1200212211 is an apocalyptic number.

1200212211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1200212211 is a deficient number, since it is larger than the sum of its proper divisors (567812877).

1200212211 is a wasteful number, since it uses less digits than its factorization.

1200212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1200212211 is about 34644.0790179217. The cubic root of 1200212211 is about 1062.7212065564.

Adding to 1200212211 its reverse (1122120021), we get a palindrome (2322332232).

The spelling of 1200212211 in words is "one billion, two hundred million, two hundred twelve thousand, two hundred eleven".