211752226401 has 8 divisors (see below), whose sum is σ = 282954107424. Its totient is φ = 140859248160.

The previous prime is 211752226363. The next prime is 211752226459. The reversal of 211752226401 is 104622257112.

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

It is not a de Polignac number, because 211752226401 - 2⁶ = 211752226337 is a prime.

It is a super-2 number, since 2×211752226401² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (211752226201) 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, 77224095 + ... + 77226836.

It is an arithmetic number, because the mean of its divisors is an integer number (35369263428).

Almost surely, 2^211752226401 is an apocalyptic number.

It is an amenable number.

211752226401 is a deficient number, since it is larger than the sum of its proper divisors (71201881023).

211752226401 is a wasteful number, since it uses less digits than its factorization.

211752226401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154451391.

The product of its (nonzero) digits is 13440, while the sum is 33.

The spelling of 211752226401 in words is "two hundred eleven billion, seven hundred fifty-two million, two hundred twenty-six thousand, four hundred one".