2021420102 has 16 divisors (see below), whose sum is σ = 3269131152. Its totient is φ = 931888800.

The previous prime is 2021420099. The next prime is 2021420111. The reversal of 2021420102 is 2010241202.

It is a super-2 number, since 2×2021420102² = 8172278457539380808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21524 + ... + 67127.

It is an arithmetic number, because the mean of its divisors is an integer number (204320697).

Almost surely, 2^2021420102 is an apocalyptic number.

2021420102 is a deficient number, since it is larger than the sum of its proper divisors (1247711050).

2021420102 is a wasteful number, since it uses less digits than its factorization.

2021420102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89543.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2021420102 is about 44960.2057602053. The cubic root of 2021420102 is about 1264.4030266080.

Adding to 2021420102 its reverse (2010241202), we get a palindrome (4031661304).

The spelling of 2021420102 in words is "two billion, twenty-one million, four hundred twenty thousand, one hundred two".