211216621147 has 8 divisors (see below), whose sum is σ = 241393445600. Its totient is φ = 181040552064.

The previous prime is 211216621093. The next prime is 211216621163. The reversal of 211216621147 is 741126612112.

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

It is a cyclic number.

It is not a de Polignac number, because 211216621147 - 2⁷ = 211216621019 is a prime.

It is a super-2 number, since 2×211216621147² (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 (211216621747) 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, 671929 + ... + 934837.

It is an arithmetic number, because the mean of its divisors is an integer number (30174180700).

Almost surely, 2^211216621147 is an apocalyptic number.

211216621147 is a deficient number, since it is larger than the sum of its proper divisors (30176824453).

211216621147 is a wasteful number, since it uses less digits than its factorization.

211216621147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377685.

The product of its digits is 8064, while the sum is 34.

The spelling of 211216621147 in words is "two hundred eleven billion, two hundred sixteen million, six hundred twenty-one thousand, one hundred forty-seven".