20011210221010 has 16 divisors (see below), whose sum is σ = 36699804406296. Its totient is φ = 7853456086528.

The previous prime is 20011210220933. The next prime is 20011210221131. The reversal of 20011210221010 is 1012201211002.

It can be written as a sum of positive squares in 4 ways, for example, as 18109356849081 + 1901853371929 = 4255509^2 + 1379077^2 .

It is a super-3 number, since 3×20011210221010³ (a number of 41 digits) contains 333 as substring.

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, 18878499679 + ... + 18878500738.

Almost surely, 2^{20011210221010} is an apocalyptic number.

20011210221010 is a deficient number, since it is larger than the sum of its proper divisors (16688594185286).

20011210221010 is a wasteful number, since it uses less digits than its factorization.

20011210221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37757000477.

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

Adding to 20011210221010 its reverse (1012201211002), we get a palindrome (21023411432012).

The spelling of 20011210221010 in words is "twenty trillion, eleven billion, two hundred ten million, two hundred twenty-one thousand, ten".