211420261245 has 8 divisors (see below), whose sum is σ = 338272418016. Its totient is φ = 112757472656.

The previous prime is 211420261207. The next prime is 211420261253. The reversal of 211420261245 is 542162024112.

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 211420261245 - 2²² = 211416066941 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7047342027 + ... + 7047342056.

It is an arithmetic number, because the mean of its divisors is an integer number (42284052252).

Almost surely, 2^211420261245 is an apocalyptic number.

It is an amenable number.

211420261245 is a deficient number, since it is larger than the sum of its proper divisors (126852156771).

211420261245 is a wasteful number, since it uses less digits than its factorization.

211420261245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14094684091.

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 211420261245 its reverse (542162024112), we get a palindrome (753582285357).

The spelling of 211420261245 in words is "two hundred eleven billion, four hundred twenty million, two hundred sixty-one thousand, two hundred forty-five".