211222002131 has 8 divisors (see below), whose sum is σ = 241400254464. Its totient is φ = 181044669960.

The previous prime is 211222002119. The next prime is 211222002133. The reversal of 211222002131 is 131200222112.

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

It is not a de Polignac number, because 211222002131 - 2¹⁸ = 211221739987 is a prime.

It is a super-2 number, since 2×211222002131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211222002133) 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, 364196 + ... + 745038.

It is an arithmetic number, because the mean of its divisors is an integer number (30175031808).

Almost surely, 2^211222002131 is an apocalyptic number.

211222002131 is a deficient number, since it is larger than the sum of its proper divisors (30178252333).

211222002131 is an equidigital number, since it uses as much as digits as its factorization.

211222002131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460081.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 211222002131 its reverse (131200222112), we get a palindrome (342422224243).

The spelling of 211222002131 in words is "two hundred eleven billion, two hundred twenty-two million, two thousand, one hundred thirty-one".