30211102212221 has 64 divisors (see below), whose sum is σ = 36645203105280. Its totient is φ = 24359992151040.

The previous prime is 30211102212209. The next prime is 30211102212241. The reversal of 30211102212221 is 12221220111203.

It is not a de Polignac number, because 30211102212221 - 2³⁸ = 29936224305277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30211102212193 and 30211102212202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30211102212241) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1146648770 + ... + 1146675116.

It is an arithmetic number, because the mean of its divisors is an integer number (572581298520).

Almost surely, 2^{30211102212221} is an apocalyptic number.

It is an amenable number.

30211102212221 is a deficient number, since it is larger than the sum of its proper divisors (6434100893059).

30211102212221 is a wasteful number, since it uses less digits than its factorization.

30211102212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27174.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 30211102212221 its reverse (12221220111203), we get a palindrome (42432322323424).

The spelling of 30211102212221 in words is "thirty trillion, two hundred eleven billion, one hundred two million, two hundred twelve thousand, two hundred twenty-one".