2111220101001 has 8 divisors (see below), whose sum is σ = 3070865601504. Its totient is φ = 1279527333920.

The previous prime is 2111220100991. The next prime is 2111220101063. The reversal of 2111220101001 is 1001010221112.

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

It is not a de Polignac number, because 2111220101001 - 2⁶ = 2111220100937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2111220101401) 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, 31988183316 + ... + 31988183381.

It is an arithmetic number, because the mean of its divisors is an integer number (383858200188).

Almost surely, 2^{2111220101001} is an apocalyptic number.

It is an amenable number.

2111220101001 is a deficient number, since it is larger than the sum of its proper divisors (959645500503).

2111220101001 is a wasteful number, since it uses less digits than its factorization.

2111220101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63976366711.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2111220101001 its reverse (1001010221112), we get a palindrome (3112230322113).

The spelling of 2111220101001 in words is "two trillion, one hundred eleven billion, two hundred twenty million, one hundred one thousand, one".