2101421110 has 8 divisors (see below), whose sum is σ = 3782558016. Its totient is φ = 840568440.

The previous prime is 2101421107. The next prime is 2101421117. The reversal of 2101421110 is 111241012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101421117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105071046 + ... + 105071065.

It is an arithmetic number, because the mean of its divisors is an integer number (472819752).

Almost surely, 2^2101421110 is an apocalyptic number.

2101421110 is a deficient number, since it is larger than the sum of its proper divisors (1681136906).

2101421110 is a wasteful number, since it uses less digits than its factorization.

2101421110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210142118.

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

The square root of 2101421110 is about 45841.2599085147. The cubic root of 2101421110 is about 1280.8679639563.

Adding to 2101421110 its reverse (111241012), we get a palindrome (2212662122).

It can be divided in two parts, 21014 and 21110, that added together give a palindrome (42124).

The spelling of 2101421110 in words is "two billion, one hundred one million, four hundred twenty-one thousand, one hundred ten".