30120220101 has 64 divisors (see below), whose sum is σ = 45290036736. Its totient is φ = 17707008000.

The previous prime is 30120220061. The next prime is 30120220129. The reversal of 30120220101 is 10102202103.

It is not a de Polignac number, because 30120220101 - 2¹⁷ = 30120089029 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120220171) 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, 11490571 + ... + 11493191.

It is an arithmetic number, because the mean of its divisors is an integer number (707656824).

Almost surely, 2^30120220101 is an apocalyptic number.

It is an amenable number.

30120220101 is a deficient number, since it is larger than the sum of its proper divisors (15169816635).

30120220101 is a wasteful number, since it uses less digits than its factorization.

30120220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 30120220101 its reverse (10102202103), we get a palindrome (40222422204).

The spelling of 30120220101 in words is "thirty billion, one hundred twenty million, two hundred twenty thousand, one hundred one".