1220012000201 has 4 divisors (see below), whose sum is σ = 1221483668100. Its totient is φ = 1218540332304.

The previous prime is 1220012000191. The next prime is 1220012000213. The reversal of 1220012000201 is 1020002100221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1069619282176 + 150392718025 = 1034224^2 + 387805^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220012000201 - 2³⁸ = 945134093257 is a prime.

It is a super-3 number, since 3×1220012000201³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220012000101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 735832706 + ... + 735834363.

It is an arithmetic number, because the mean of its divisors is an integer number (305370917025).

Almost surely, 2^{1220012000201} is an apocalyptic number.

It is an amenable number.

1220012000201 is a deficient number, since it is larger than the sum of its proper divisors (1471667899).

1220012000201 is an equidigital number, since it uses as much as digits as its factorization.

1220012000201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471667898.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1220012000201 its reverse (1020002100221), we get a palindrome (2240014100422).

The spelling of 1220012000201 in words is "one trillion, two hundred twenty billion, twelve million, two hundred one", and thus it is an aban number.