211114520142 has 16 divisors (see below), whose sum is σ = 427573712640. Its totient is φ = 69480727992.

The previous prime is 211114520137. The next prime is 211114520159. The reversal of 211114520142 is 241025411112.

It is a super-2 number, since 2×211114520142² (a number of 23 digits) contains 22 as substring.

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, 222694168 + ... + 222695115.

It is an arithmetic number, because the mean of its divisors is an integer number (26723357040).

Almost surely, 2^211114520142 is an apocalyptic number.

211114520142 is an abundant number, since it is smaller than the sum of its proper divisors (216459192498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211114520142 is a wasteful number, since it uses less digits than its factorization.

211114520142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445389367.

The product of its (nonzero) digits is 640, while the sum is 24.

Adding to 211114520142 its reverse (241025411112), we get a palindrome (452139931254).

The spelling of 211114520142 in words is "two hundred eleven billion, one hundred fourteen million, five hundred twenty thousand, one hundred forty-two".