211450101255 has 24 divisors (see below), whose sum is σ = 368762070768. Its totient is φ = 112081522176.

The previous prime is 211450101251. The next prime is 211450101271. The reversal of 211450101255 is 552101054112.

It is a happy number.

211450101255 is a `hidden beast` number, since 21 + 14 + 501 + 0 + 125 + 5 = 666.

It is not a de Polignac number, because 211450101255 - 2² = 211450101251 is a prime.

It is a super-2 number, since 2×211450101255² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211450101251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14406442 + ... + 14421111.

It is an arithmetic number, because the mean of its divisors is an integer number (15365086282).

Almost surely, 2^211450101255 is an apocalyptic number.

211450101255 is a deficient number, since it is larger than the sum of its proper divisors (157311969513).

211450101255 is a wasteful number, since it uses less digits than its factorization.

211450101255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28827727 (or 28827724 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

Adding to 211450101255 its reverse (552101054112), we get a palindrome (763551155367).

The spelling of 211450101255 in words is "two hundred eleven billion, four hundred fifty million, one hundred one thousand, two hundred fifty-five".