2100420220030 has 128 divisors (see below), whose sum is σ = 4404445839360. Its totient is φ = 712716963840.

The previous prime is 2100420220009. The next prime is 2100420220033. The reversal of 2100420220030 is 300220240012.

It is a super-4 number, since 4×2100420220030⁴ (a number of 50 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2100420219986 and 2100420220013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100420220033) 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, 625309491 + ... + 625312849.

It is an arithmetic number, because the mean of its divisors is an integer number (34409733120).

Almost surely, 2^{2100420220030} is an apocalyptic number.

2100420220030 is an abundant number, since it is smaller than the sum of its proper divisors (2304025619330).

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

2100420220030 is a wasteful number, since it uses less digits than its factorization.

2100420220030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6154.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 2100420220030 its reverse (300220240012), we get a palindrome (2400640460042).

The spelling of 2100420220030 in words is "two trillion, one hundred billion, four hundred twenty million, two hundred twenty thousand, thirty".