20211011202011 has 16 divisors (see below), whose sum is σ = 25300367547840. Its totient is φ = 15742450913280.

The previous prime is 20211011201993. The next prime is 20211011202029. The reversal of 20211011202011 is 11020211011202.

It is an interprime number because it is at equal distance from previous prime (20211011201993) and next prime (20211011202029).

It is not a de Polignac number, because 20211011202011 - 2³⁴ = 20193831332827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20211011202211) 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, 2928279830 + ... + 2928286731.

It is an arithmetic number, because the mean of its divisors is an integer number (1581272971740).

Almost surely, 2^{20211011202011} is an apocalyptic number.

20211011202011 is a deficient number, since it is larger than the sum of its proper divisors (5089356345829).

20211011202011 is a wasteful number, since it uses less digits than its factorization.

20211011202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5856566614.

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

Adding to 20211011202011 its reverse (11020211011202), we get a palindrome (31231222213213).

The spelling of 20211011202011 in words is "twenty trillion, two hundred eleven billion, eleven million, two hundred two thousand, eleven".