20211000202211 has 16 divisors (see below), whose sum is σ = 24894345385728. Its totient is φ = 15978734330400.

The previous prime is 20211000202207. The next prime is 20211000202241. The reversal of 20211000202211 is 11220200011202.

It is a cyclic number.

It is not a de Polignac number, because 20211000202211 - 2² = 20211000202207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20211000202241) 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, 85900685 + ... + 86135646.

It is an arithmetic number, because the mean of its divisors is an integer number (1555896586608).

Almost surely, 2^{20211000202211} is an apocalyptic number.

20211000202211 is a deficient number, since it is larger than the sum of its proper divisors (4683345183517).

20211000202211 is a wasteful number, since it uses less digits than its factorization.

20211000202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172037642.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20211000202211 its reverse (11220200011202), we get a palindrome (31431200213413).

The spelling of 20211000202211 in words is "twenty trillion, two hundred eleven billion, two hundred two thousand, two hundred eleven".