2011201213021 has 32 divisors (see below), whose sum is σ = 2700492076800. Its totient is φ = 1446544327680.

The previous prime is 2011201213003. The next prime is 2011201213039. The reversal of 2011201213021 is 1203121021102.

It is an interprime number because it is at equal distance from previous prime (2011201213003) and next prime (2011201213039).

It is a cyclic number.

It is not a de Polignac number, because 2011201213021 - 2⁵ = 2011201212989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2011201212986 and 2011201213004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011201213001) 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, 26297125 + ... + 26373493.

It is an arithmetic number, because the mean of its divisors is an integer number (84390377400).

Almost surely, 2^{2011201213021} is an apocalyptic number.

It is an amenable number.

2011201213021 is a deficient number, since it is larger than the sum of its proper divisors (689290863779).

2011201213021 is a wasteful number, since it uses less digits than its factorization.

2011201213021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102709.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2011201213021 its reverse (1203121021102), we get a palindrome (3214322234123).

It can be divided in two parts, 2011201 and 213021, that added together give a palindrome (2224222).

The spelling of 2011201213021 in words is "two trillion, eleven billion, two hundred one million, two hundred thirteen thousand, twenty-one".