2011212220001 has 4 divisors (see below), whose sum is σ = 2021742127104. Its totient is φ = 2000682312900.

The previous prime is 2011212219983. The next prime is 2011212220007. The reversal of 2011212220001 is 1000222121102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2011212220001 - 2¹⁸ = 2011211957857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011212220007) 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, 5264953265 + ... + 5264953646.

It is an arithmetic number, because the mean of its divisors is an integer number (505435531776).

Almost surely, 2^{2011212220001} is an apocalyptic number.

It is an amenable number.

2011212220001 is a deficient number, since it is larger than the sum of its proper divisors (10529907103).

2011212220001 is a wasteful number, since it uses less digits than its factorization.

2011212220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10529907102.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2011212220001 its reverse (1000222121102), we get a palindrome (3011434341103).

The spelling of 2011212220001 in words is "two trillion, eleven billion, two hundred twelve million, two hundred twenty thousand, one".