211214131421 has 8 divisors (see below), whose sum is σ = 217130250624. Its totient is φ = 205334419680.

The previous prime is 211214131411. The next prime is 211214131487. The reversal of 211214131421 is 124131412112.

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 211214131421 - 2¹⁴ = 211214115037 is a prime.

It is a super-2 number, since 2×211214131421² (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 (211214131411) 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, 9090101 + ... + 9113306.

It is an arithmetic number, because the mean of its divisors is an integer number (27141281328).

Almost surely, 2^211214131421 is an apocalyptic number.

It is an amenable number.

211214131421 is a deficient number, since it is larger than the sum of its proper divisors (5916119203).

211214131421 is a wasteful number, since it uses less digits than its factorization.

211214131421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18203731.

The product of its digits is 384, while the sum is 23.

Adding to 211214131421 its reverse (124131412112), we get a palindrome (335345543533).

The spelling of 211214131421 in words is "two hundred eleven billion, two hundred fourteen million, one hundred thirty-one thousand, four hundred twenty-one".