2021002010102 has 32 divisors (see below), whose sum is σ = 3088526837760. Its totient is φ = 991614998880.

The previous prime is 2021002010101. The next prime is 2021002010119. The reversal of 2021002010102 is 2010102001202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021002010101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42250283 + ... + 42298089.

It is an arithmetic number, because the mean of its divisors is an integer number (96516463680).

Almost surely, 2^{2021002010102} is an apocalyptic number.

2021002010102 is a deficient number, since it is larger than the sum of its proper divisors (1067524827658).

2021002010102 is a wasteful number, since it uses less digits than its factorization.

2021002010102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49076.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2021002010102 its reverse (2010102001202), we get a palindrome (4031104011304).

The spelling of 2021002010102 in words is "two trillion, twenty-one billion, two million, ten thousand, one hundred two".