211214357 has 2 divisors, whose sum is σ = 211214358. Its totient is φ = 211214356.

The previous prime is 211214291. The next prime is 211214371. The reversal of 211214357 is 753412112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210424036 + 790321 = 14506^2 + 889^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211214357 is a prime.

It is a super-2 number, since 2×211214357² = 89223009205846898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211214057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105607178 + 105607179.

It is an arithmetic number, because the mean of its divisors is an integer number (105607179).

Almost surely, 2^211214357 is an apocalyptic number.

It is an amenable number.

211214357 is a deficient number, since it is larger than the sum of its proper divisors (1).

211214357 is an equidigital number, since it uses as much as digits as its factorization.

211214357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 26.

The square root of 211214357 is about 14533.2156455480. The cubic root of 211214357 is about 595.5357150559.

Adding to 211214357 its reverse (753412112), we get a palindrome (964626469).

The spelling of 211214357 in words is "two hundred eleven million, two hundred fourteen thousand, three hundred fifty-seven".