110021212121210 has 32 divisors (see below), whose sum is σ = 225817293299472. Its totient is φ = 38233615795200.

The previous prime is 110021212121209. The next prime is 110021212121213. The reversal of 110021212121210 is 12121212120011.

It can be written as a sum of positive squares in 8 ways, for example, as 24866907608929 + 85154304512281 = 4986673^2 + 9227909^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (110021212121213) 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, 24891674741 + ... + 24891679160.

Almost surely, 2^{110021212121210} is an apocalyptic number.

110021212121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

110021212121210 is an abundant number, since it is smaller than the sum of its proper divisors (115796081178262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

110021212121210 is a wasteful number, since it uses less digits than its factorization.

110021212121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49783353938.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 110021212121210 its reverse (12121212120011), we get a palindrome (122142424241221).

The spelling of 110021212121210 in words is "one hundred ten trillion, twenty-one billion, two hundred twelve million, one hundred twenty-one thousand, two hundred ten".