20100222212011 has 4 divisors (see below), whose sum is σ = 20793333322800. Its totient is φ = 19407111101224.

The previous prime is 20100222211997. The next prime is 20100222212023. The reversal of 20100222212011 is 11021222200102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20100222212011 - 2¹³ = 20100222203819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20100222212071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346555555351 + ... + 346555555408.

It is an arithmetic number, because the mean of its divisors is an integer number (5198333330700).

Almost surely, 2^{20100222212011} is an apocalyptic number.

20100222212011 is a deficient number, since it is larger than the sum of its proper divisors (693111110789).

20100222212011 is an equidigital number, since it uses as much as digits as its factorization.

20100222212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693111110788.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20100222212011 its reverse (11021222200102), we get a palindrome (31121444412113).

The spelling of 20100222212011 in words is "twenty trillion, one hundred billion, two hundred twenty-two million, two hundred twelve thousand, eleven".