2101122030 has 128 divisors (see below), whose sum is σ = 6262456320. Its totient is φ = 440277120.

The previous prime is 2101122017. The next prime is 2101122031. The reversal of 2101122030 is 302211012.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2101121997 and 2101122015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101122031) 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, 115197 + ... + 132183.

It is an arithmetic number, because the mean of its divisors is an integer number (48925440).

Almost surely, 2^2101122030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2101122030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3131228160).

2101122030 is an abundant number, since it is smaller than the sum of its proper divisors (4161334290).

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

2101122030 is a wasteful number, since it uses less digits than its factorization.

2101122030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17054.

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

The square root of 2101122030 is about 45837.9976656922. The cubic root of 2101122030 is about 1280.8071955294.

Adding to 2101122030 its reverse (302211012), we get a palindrome (2403333042).

The spelling of 2101122030 in words is "two billion, one hundred one million, one hundred twenty-two thousand, thirty".