20012201101210 has 16 divisors (see below), whose sum is σ = 36022987334376. Its totient is φ = 8004652584448.

The previous prime is 20012201101159. The next prime is 20012201101267. The reversal of 20012201101210 is 1210110221002.

It can be written as a sum of positive squares in 4 ways, for example, as 7370741737921 + 12641459363289 = 2714911^2 + 3555483^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28112899 + ... + 28815958.

Almost surely, 2^{20012201101210} is an apocalyptic number.

20012201101210 is a deficient number, since it is larger than the sum of its proper divisors (16010786233166).

20012201101210 is a wasteful number, since it uses less digits than its factorization.

20012201101210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56964017.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20012201101210 its reverse (1210110221002), we get a palindrome (21222311322212).

The spelling of 20012201101210 in words is "twenty trillion, twelve billion, two hundred one million, one hundred one thousand, two hundred ten".