20211201011 has 8 divisors (see below), whose sum is σ = 20561519040. Its totient is φ = 19861141608.

The previous prime is 20211200993. The next prime is 20211201019. The reversal of 20211201011 is 11010211202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20211201011 - 2¹⁴ = 20211184627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20211200983 and 20211201001.

It is not an unprimeable number, because it can be changed into a prime (20211201019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96440 + ... + 222986.

It is an arithmetic number, because the mean of its divisors is an integer number (2570189880).

Almost surely, 2^20211201011 is an apocalyptic number.

20211201011 is a deficient number, since it is larger than the sum of its proper divisors (350318029).

20211201011 is a wasteful number, since it uses less digits than its factorization.

20211201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129313.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20211201011 its reverse (11010211202), we get a palindrome (31221412213).

The spelling of 20211201011 in words is "twenty billion, two hundred eleven million, two hundred one thousand, eleven".