20111001022211 has 8 divisors (see below), whose sum is σ = 21939992140800. Its totient is φ = 18282129620040.

The previous prime is 20111001022199. The next prime is 20111001022219. The reversal of 20111001022211 is 11222010011102.

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

It is not a de Polignac number, because 20111001022211 - 2¹⁰ = 20111001021187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20111001022219) 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, 29577671 + ... + 30249968.

It is an arithmetic number, because the mean of its divisors is an integer number (2742499017600).

Almost surely, 2^{20111001022211} is an apocalyptic number.

20111001022211 is a deficient number, since it is larger than the sum of its proper divisors (1828991118589).

20111001022211 is a wasteful number, since it uses less digits than its factorization.

20111001022211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59858209.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20111001022211 its reverse (11222010011102), we get a palindrome (31333011033313).

The spelling of 20111001022211 in words is "twenty trillion, one hundred eleven billion, one million, twenty-two thousand, two hundred eleven".