20120201102011 has 16 divisors (see below), whose sum is σ = 20511938512800. Its totient is φ = 19728916017408.

The previous prime is 20120201102009. The next prime is 20120201102039. The reversal of 20120201102011 is 11020110202102.

It is a cyclic number.

It is not a de Polignac number, because 20120201102011 - 2¹ = 20120201102009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20120201101982 and 20120201102000.

It is not an unprimeable number, because it can be changed into a prime (20120201100011) 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, 694288320 + ... + 694317298.

It is an arithmetic number, because the mean of its divisors is an integer number (1281996157050).

Almost surely, 2^{20120201102011} is an apocalyptic number.

20120201102011 is a deficient number, since it is larger than the sum of its proper divisors (391737410789).

20120201102011 is a wasteful number, since it uses less digits than its factorization.

20120201102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36318.

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

Adding to 20120201102011 its reverse (11020110202102), we get a palindrome (31140311304113).

The spelling of 20120201102011 in words is "twenty trillion, one hundred twenty billion, two hundred one million, one hundred two thousand, eleven".