21021202100110 has 16 divisors (see below), whose sum is σ = 37936957948416. Its totient is φ = 8386526580448.

The previous prime is 21021202100021. The next prime is 21021202100131. The reversal of 21021202100110 is 1100120212012.

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, 2744278429 + ... + 2744286088.

It is an arithmetic number, because the mean of its divisors is an integer number (2371059871776).

Almost surely, 2^{21021202100110} is an apocalyptic number.

21021202100110 is a deficient number, since it is larger than the sum of its proper divisors (16915755848306).

21021202100110 is a wasteful number, since it uses less digits than its factorization.

21021202100110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5488564907.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21021202100110 its reverse (1100120212012), we get a palindrome (22121322312122).

The spelling of 21021202100110 in words is "twenty-one trillion, twenty-one billion, two hundred two million, one hundred thousand, one hundred ten".