20101011012211 has 32 divisors (see below), whose sum is σ = 21907598169600. Its totient is φ = 18369165298176.

The previous prime is 20101011012163. The next prime is 20101011012217. The reversal of 20101011012211 is 11221011010102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20101011012211 - 2²¹ = 20101008915059 is a prime.

It is a super-2 number, since 2×20101011012211² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20101011012191 and 20101011012200.

It is not an unprimeable number, because it can be changed into a prime (20101011012217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162427020 + ... + 162550726.

It is an arithmetic number, because the mean of its divisors is an integer number (684612442800).

Almost surely, 2^{20101011012211} is an apocalyptic number.

20101011012211 is a deficient number, since it is larger than the sum of its proper divisors (1806587157389).

20101011012211 is a wasteful number, since it uses less digits than its factorization.

20101011012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125083.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20101011012211 its reverse (11221011010102), we get a palindrome (31322022022313).

The spelling of 20101011012211 in words is "twenty trillion, one hundred one billion, eleven million, twelve thousand, two hundred eleven".