211321022142330 has 160 divisors (see below), whose sum is σ = 572452182973440. Its totient is φ = 55933041715200.

The previous prime is 211321022142323. The next prime is 211321022142397. The reversal of 211321022142330 is 33241220123112.

211321022142330 is a `hidden beast` number, since 2 + 1 + 1 + 3 + 2 + 10 + 221 + 423 + 3 + 0 = 666.

It is a super-2 number, since 2×211321022142330² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 211321022142294 and 211321022142303.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 148141431 + ... + 149561109.

It is an arithmetic number, because the mean of its divisors is an integer number (3577826143584).

Almost surely, 2^{211321022142330} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211321022142330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286226091486720).

211321022142330 is an abundant number, since it is smaller than the sum of its proper divisors (361131160831110).

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

211321022142330 is a wasteful number, since it uses less digits than its factorization.

211321022142330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421066 (or 1421057 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 211321022142330 its reverse (33241220123112), we get a palindrome (244562242265442).

The spelling of 211321022142330 in words is "two hundred eleven trillion, three hundred twenty-one billion, twenty-two million, one hundred forty-two thousand, three hundred thirty".