20200120101202 has 4 divisors (see below), whose sum is σ = 30300180151806. Its totient is φ = 10100060050600.

The previous prime is 20200120101193. The next prime is 20200120101209. The reversal of 20200120101202 is 20210102100202.

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 only one way, i.e., 17416758408921 + 2783361692281 = 4173339^2 + 1668341^2 .

It is not an unprimeable number, because it can be changed into a prime (20200120101209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050030025299 + ... + 5050030025302.

Almost surely, 2^{20200120101202} is an apocalyptic number.

20200120101202 is a deficient number, since it is larger than the sum of its proper divisors (10100060050604).

20200120101202 is a wasteful number, since it uses less digits than its factorization.

20200120101202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100060050603.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20200120101202 its reverse (20210102100202), we get a palindrome (40410222201404).

The spelling of 20200120101202 in words is "twenty trillion, two hundred billion, one hundred twenty million, one hundred one thousand, two hundred two".