20210100202090 has 16 divisors (see below), whose sum is σ = 36397876217472. Its totient is φ = 8079663224464.

The previous prime is 20210100202063. The next prime is 20210100202129. The reversal of 20210100202090 is 9020200101202.

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, 547087654 + ... + 547124593.

It is an arithmetic number, because the mean of its divisors is an integer number (2274867263592).

Almost surely, 2^{20210100202090} is an apocalyptic number.

20210100202090 is a deficient number, since it is larger than the sum of its proper divisors (16187776015382).

20210100202090 is a wasteful number, since it uses less digits than its factorization.

20210100202090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094214101.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20210100202090 its reverse (9020200101202), we get a palindrome (29230300303292).

The spelling of 20210100202090 in words is "twenty trillion, two hundred ten billion, one hundred million, two hundred two thousand, ninety".