210021101110 has 32 divisors (see below), whose sum is σ = 379227746592. Its totient is φ = 83744179200.

The previous prime is 210021101107. The next prime is 210021101113. The reversal of 210021101110 is 11101120012.

It is an interprime number because it is at equal distance from previous prime (210021101107) and next prime (210021101113).

It is a super-2 number, since 2×210021101110² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210021101113) 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, 21207160 + ... + 21217060.

It is an arithmetic number, because the mean of its divisors is an integer number (11850867081).

Almost surely, 2^210021101110 is an apocalyptic number.

210021101110 is a deficient number, since it is larger than the sum of its proper divisors (169206645482).

210021101110 is a wasteful number, since it uses less digits than its factorization.

210021101110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16368.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 210021101110 its reverse (11101120012), we get a palindrome (221122221122).

The spelling of 210021101110 in words is "two hundred ten billion, twenty-one million, one hundred one thousand, one hundred ten".