1220134201 has 24 divisors (see below), whose sum is σ = 1445670720. Its totient is φ = 1020801600.

The previous prime is 1220134141. The next prime is 1220134243. The reversal of 1220134201 is 1024310221.

It is not a de Polignac number, because 1220134201 - 2⁹ = 1220133689 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220134271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 781860 + ... + 783418.

It is an arithmetic number, because the mean of its divisors is an integer number (60236280).

Almost surely, 2^1220134201 is an apocalyptic number.

1220134201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1220134201 is a deficient number, since it is larger than the sum of its proper divisors (225536519).

1220134201 is a wasteful number, since it uses less digits than its factorization.

1220134201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017 (or 2004 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1220134201 is about 34930.4194220453. The cubic root of 1220134201 is about 1068.5689084278.

Adding to 1220134201 its reverse (1024310221), we get a palindrome (2244444422).

The spelling of 1220134201 in words is "one billion, two hundred twenty million, one hundred thirty-four thousand, two hundred one".