211220130330030 has 32 divisors (see below), whose sum is σ = 506937234927744. Its totient is φ = 56324376739616.

The previous prime is 211220130329981. The next prime is 211220130330047. The reversal of 211220130330030 is 30033031022112.

It is a super-2 number, since 2×211220130330030² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211220130329979 and 211220130330006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60225564 + ... + 63636143.

It is an arithmetic number, because the mean of its divisors is an integer number (15841788591492).

Almost surely, 2^{211220130330030} is an apocalyptic number.

211220130330030 is an abundant number, since it is smaller than the sum of its proper divisors (295717104597714).

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

211220130330030 is a wasteful number, since it uses less digits than its factorization.

211220130330030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123918560.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 211220130330030 its reverse (30033031022112), we get a palindrome (241253161352142).

The spelling of 211220130330030 in words is "two hundred eleven trillion, two hundred twenty billion, one hundred thirty million, three hundred thirty thousand, thirty".