1201012211 has 16 divisors (see below), whose sum is σ = 1451708160. Its totient is φ = 970613280.

The previous prime is 1201012207. The next prime is 1201012223. The reversal of 1201012211 is 1122101021.

It is not a de Polignac number, because 1201012211 - 2² = 1201012207 is a prime.

It is a super-2 number, since 2×1201012211² = 2884860661942217042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1201012192 and 1201012201.

It is not an unprimeable number, because it can be changed into a prime (1201032211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6665 + ... + 49461.

It is an arithmetic number, because the mean of its divisors is an integer number (90731760).

Almost surely, 2^1201012211 is an apocalyptic number.

1201012211 is a deficient number, since it is larger than the sum of its proper divisors (250695949).

1201012211 is a wasteful number, since it uses less digits than its factorization.

1201012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43034.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1201012211 is about 34655.6230790906. The cubic root of 1201012211 is about 1062.9572726267.

Adding to 1201012211 its reverse (1122101021), we get a palindrome (2323113232).

The spelling of 1201012211 in words is "one billion, two hundred one million, twelve thousand, two hundred eleven".