1212011201 has 8 divisors (see below), whose sum is σ = 1244443200. Its totient is φ = 1179772272.

The previous prime is 1212011179. The next prime is 1212011233. The reversal of 1212011201 is 1021102121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212011201 - 2¹⁸ = 1211749057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212091201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35501 + ... + 60698.

It is an arithmetic number, because the mean of its divisors is an integer number (155555400).

Almost surely, 2^1212011201 is an apocalyptic number.

It is an amenable number.

1212011201 is a deficient number, since it is larger than the sum of its proper divisors (32431999).

1212011201 is an equidigital number, since it uses as much as digits as its factorization.

1212011201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96535.

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

The square root of 1212011201 is about 34813.9512408460. The cubic root of 1212011201 is about 1066.1923067316.

Adding to 1212011201 its reverse (1021102121), we get a palindrome (2233113322).

The spelling of 1212011201 in words is "one billion, two hundred twelve million, eleven thousand, two hundred one".