1021201205 has 8 divisors (see below), whose sum is σ = 1246212000. Its totient is φ = 803113936.

The previous prime is 1021201201. The next prime is 1021201217. The reversal of 1021201205 is 5021021201.

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 1021201205 - 2² = 1021201201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1021201205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021201201) 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, 1730555 + ... + 1731144.

It is an arithmetic number, because the mean of its divisors is an integer number (155776500).

Almost surely, 2^1021201205 is an apocalyptic number.

It is an amenable number.

1021201205 is a deficient number, since it is larger than the sum of its proper divisors (225010795).

1021201205 is an equidigital number, since it uses as much as digits as its factorization.

1021201205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3461763.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1021201205 is about 31956.2389057286. The cubic root of 1021201205 is about 1007.0177049475.

Adding to 1021201205 its reverse (5021021201), we get a palindrome (6042222406).

The spelling of 1021201205 in words is "one billion, twenty-one million, two hundred one thousand, two hundred five".