2122220021011 has 4 divisors (see below), whose sum is σ = 2171573975032. Its totient is φ = 2072866066992.

The previous prime is 2122220021003. The next prime is 2122220021087. The reversal of 2122220021011 is 1101200222212.

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 2122220021011 - 2³ = 2122220021003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122220021611) 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, 24676976946 + ... + 24676977031.

It is an arithmetic number, because the mean of its divisors is an integer number (542893493758).

Almost surely, 2^{2122220021011} is an apocalyptic number.

2122220021011 is a deficient number, since it is larger than the sum of its proper divisors (49353954021).

2122220021011 is an equidigital number, since it uses as much as digits as its factorization.

2122220021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49353954020.

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

Adding to 2122220021011 its reverse (1101200222212), we get a palindrome (3223420243223).

The spelling of 2122220021011 in words is "two trillion, one hundred twenty-two billion, two hundred twenty million, twenty-one thousand, eleven".