20112001211 has 8 divisors (see below), whose sum is σ = 20279771904. Its totient is φ = 19944685800.

The previous prime is 20112001171. The next prime is 20112001229. The reversal of 20112001211 is 11210021102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20112001211 - 2¹⁰ = 20112000187 is a prime.

It is a super-2 number, since 2×20112001211² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20112001192 and 20112001201.

It is not an unprimeable number, because it can be changed into a prime (20112001411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24815 + ... + 202088.

It is an arithmetic number, because the mean of its divisors is an integer number (2534971488).

Almost surely, 2^20112001211 is an apocalyptic number.

20112001211 is a deficient number, since it is larger than the sum of its proper divisors (167770693).

20112001211 is a wasteful number, since it uses less digits than its factorization.

20112001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227641.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20112001211 its reverse (11210021102), we get a palindrome (31322022313).

The spelling of 20112001211 in words is "twenty billion, one hundred twelve million, one thousand, two hundred eleven".