40001022211211 has 4 divisors (see below), whose sum is σ = 40055593865712. Its totient is φ = 39946450556712.

The previous prime is 40001022211193. The next prime is 40001022211247. The reversal of 40001022211211 is 11211222010004.

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 40001022211211 - 2¹⁴ = 40001022194827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40001022211211.

It is not an unprimeable number, because it can be changed into a prime (40001022201211) 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, 27285826151 + ... + 27285827616.

It is an arithmetic number, because the mean of its divisors is an integer number (10013898466428).

Almost surely, 2^{40001022211211} is an apocalyptic number.

40001022211211 is a deficient number, since it is larger than the sum of its proper divisors (54571654501).

40001022211211 is an equidigital number, since it uses as much as digits as its factorization.

40001022211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54571654500.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 40001022211211 its reverse (11211222010004), we get a palindrome (51212244221215).

The spelling of 40001022211211 in words is "forty trillion, one billion, twenty-two million, two hundred eleven thousand, two hundred eleven".