2100420424102 has 64 divisors (see below), whose sum is σ = 4237053811200. Its totient is φ = 754175162880.

The previous prime is 2100420424099. The next prime is 2100420424129. The reversal of 2100420424102 is 2014240240012.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 391774 + ... + 2086702.

It is an arithmetic number, because the mean of its divisors is an integer number (66203965800).

Almost surely, 2^{2100420424102} is an apocalyptic number.

2100420424102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2100420424102 is an abundant number, since it is smaller than the sum of its proper divisors (2136633387098).

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

2100420424102 is a wasteful number, since it uses less digits than its factorization.

2100420424102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695581.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 2100420424102 its reverse (2014240240012), we get a palindrome (4114660664114).

The spelling of 2100420424102 in words is "two trillion, one hundred billion, four hundred twenty million, four hundred twenty-four thousand, one hundred two".