211222125 has 48 divisors (see below), whose sum is σ = 383145984. Its totient is φ = 111948000.

The previous prime is 211222111. The next prime is 211222147. The reversal of 211222125 is 521222112.

211222125 = 21³ + 22³ + ... + 170³.

It is not a de Polignac number, because 211222125 - 2⁶ = 211222061 is a prime.

It is a super-2 number, since 2×211222125² = 89229572179031250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211222098 and 211222107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 214384 + ... + 215366.

It is an arithmetic number, because the mean of its divisors is an integer number (7982208).

Almost surely, 2^211222125 is an apocalyptic number.

211222125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

211222125 is a deficient number, since it is larger than the sum of its proper divisors (171923859).

211222125 is a wasteful number, since it uses less digits than its factorization.

211222125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195 (or 1182 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 211222125 is about 14533.4828929613. The cubic root of 211222125 is about 595.5430157981.

Adding to 211222125 its reverse (521222112), we get a palindrome (732444237).

The spelling of 211222125 in words is "two hundred eleven million, two hundred twenty-two thousand, one hundred twenty-five".