2120121201 has 32 divisors (see below), whose sum is σ = 3184091136. Its totient is φ = 1243512000.

The previous prime is 2120121197. The next prime is 2120121233. The reversal of 2120121201 is 1021210212.

It is not a de Polignac number, because 2120121201 - 2² = 2120121197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120121701) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 228666 + ... + 237756.

It is an arithmetic number, because the mean of its divisors is an integer number (99502848).

Almost surely, 2^2120121201 is an apocalyptic number.

It is an amenable number.

2120121201 is a deficient number, since it is larger than the sum of its proper divisors (1063969935).

2120121201 is a wasteful number, since it uses less digits than its factorization.

2120121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9333.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2120121201 is about 46044.7738728295. The cubic root of 2120121201 is about 1284.6561381644.

Adding to 2120121201 its reverse (1021210212), we get a palindrome (3141331413).

It can be divided in two parts, 2120 and 121201, that added together give a palindrome (123321).

The spelling of 2120121201 in words is "two billion, one hundred twenty million, one hundred twenty-one thousand, two hundred one".