20101021202211 has 16 divisors (see below), whose sum is σ = 28413649271808. Its totient is φ = 12617903455200.

The previous prime is 20101021202183. The next prime is 20101021202237. The reversal of 20101021202211 is 11220212010102.

It is not a de Polignac number, because 20101021202211 - 2³¹ = 20098873718563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20101021202261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2920807545 + ... + 2920814426.

It is an arithmetic number, because the mean of its divisors is an integer number (1775853079488).

Almost surely, 2^{20101021202211} is an apocalyptic number.

20101021202211 is a deficient number, since it is larger than the sum of its proper divisors (8312628069597).

20101021202211 is a wasteful number, since it uses less digits than its factorization.

20101021202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5841622042.

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

Adding to 20101021202211 its reverse (11220212010102), we get a palindrome (31321233212313).

The spelling of 20101021202211 in words is "twenty trillion, one hundred one billion, twenty-one million, two hundred two thousand, two hundred eleven".