211221031341 has 16 divisors (see below), whose sum is σ = 283353610176. Its totient is φ = 139951798656.

The previous prime is 211221031337. The next prime is 211221031363. The reversal of 211221031341 is 143130122112.

It is not a de Polignac number, because 211221031341 - 2² = 211221031337 is a prime.

It is a super-2 number, since 2×211221031341² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211221031321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1469121 + ... + 1606473.

It is an arithmetic number, because the mean of its divisors is an integer number (17709600636).

Almost surely, 2^211221031341 is an apocalyptic number.

It is an amenable number.

211221031341 is a deficient number, since it is larger than the sum of its proper divisors (72132578835).

211221031341 is a wasteful number, since it uses less digits than its factorization.

211221031341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140492.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 211221031341 its reverse (143130122112), we get a palindrome (354351153453).

The spelling of 211221031341 in words is "two hundred eleven billion, two hundred twenty-one million, thirty-one thousand, three hundred forty-one".