20201001122211 has 192 divisors, whose sum is σ = 35205976857600. Its totient is φ = 10076909027328.

The previous prime is 20201001122189. The next prime is 20201001122251. The reversal of 20201001122211 is 11222110010202.

It is not a de Polignac number, because 20201001122211 - 2⁵ = 20201001122179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20201001122251) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 689509915 + ... + 689539211.

It is an arithmetic number, because the mean of its divisors is an integer number (183364462800).

Almost surely, 2^{20201001122211} is an apocalyptic number.

20201001122211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20201001122211 is a deficient number, since it is larger than the sum of its proper divisors (15004975735389).

20201001122211 is a wasteful number, since it uses less digits than its factorization.

20201001122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29518 (or 29505 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20201001122211 its reverse (11222110010202), we get a palindrome (31423111132413).

The spelling of 20201001122211 in words is "twenty trillion, two hundred one billion, one million, one hundred twenty-two thousand, two hundred eleven".