36220121 has 16 divisors (see below), whose sum is σ = 43266048. Its totient is φ = 29667600.

The previous prime is 36220111. The next prime is 36220141. The reversal of 36220121 is 12102263.

It is a cyclic number.

It is not a de Polignac number, because 36220121 - 2¹⁴ = 36203737 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 36220121.

It is not an unprimeable number, because it can be changed into a prime (36220111) 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, 17006 + ... + 19016.

It is an arithmetic number, because the mean of its divisors is an integer number (2704128).

Almost surely, 2^36220121 is an apocalyptic number.

36220121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

36220121 is a deficient number, since it is larger than the sum of its proper divisors (7045927).

36220121 is a wasteful number, since it uses less digits than its factorization.

36220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 36220121 is about 6018.3154619877. The cubic root of 36220121 is about 330.8643426292.

Adding to 36220121 its reverse (12102263), we get a palindrome (48322384).

The spelling of 36220121 in words is "thirty-six million, two hundred twenty thousand, one hundred twenty-one".