211222131000 has 64 divisors (see below), whose sum is σ = 659013058080. Its totient is φ = 56325900800.

The previous prime is 211222130989. The next prime is 211222131023. The reversal of 211222131000 is 131222112.

211222131000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211222131000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35200689 + ... + 35206688.

Almost surely, 2^211222131000 is an apocalyptic number.

211222131000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211222131000 is an abundant number, since it is smaller than the sum of its proper divisors (447790927080).

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

211222131000 is a wasteful number, since it uses less digits than its factorization.

211222131000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70407401 (or 70407387 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 211222131000 its reverse (131222112), we get a palindrome (211353353112).

The spelling of 211222131000 in words is "two hundred eleven billion, two hundred twenty-two million, one hundred thirty-one thousand".