211222122013 has 8 divisors (see below), whose sum is σ = 244452366080. Its totient is φ = 178755791760.

The previous prime is 211222122011. The next prime is 211222122017. The reversal of 211222122013 is 310221222112.

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

It is not a de Polignac number, because 211222122013 - 2¹ = 211222122011 is a prime.

It is a super-2 number, since 2×211222122013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211222122011) 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, 190977858 + ... + 190978963.

It is an arithmetic number, because the mean of its divisors is an integer number (30556545760).

Almost surely, 2^211222122013 is an apocalyptic number.

It is an amenable number.

211222122013 is a deficient number, since it is larger than the sum of its proper divisors (33230244067).

211222122013 is an equidigital number, since it uses as much as digits as its factorization.

211222122013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381956907.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 211222122013 its reverse (310221222112), we get a palindrome (521443344125).

The spelling of 211222122013 in words is "two hundred eleven billion, two hundred twenty-two million, one hundred twenty-two thousand, thirteen".