110000021002121 has 4 divisors (see below), whose sum is σ = 116470610472852. Its totient is φ = 103529431531392.

The previous prime is 110000021002061. The next prime is 110000021002127. The reversal of 110000021002121 is 121200120000011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88305488410000 + 21694532592121 = 9397100^2 + 4657739^2 .

It is a cyclic number.

It is not a de Polignac number, because 110000021002121 - 2⁶ = 110000021002057 is a prime.

It is a super-2 number, since 2×110000021002121² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (110000021002127) 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, 3235294735340 + ... + 3235294735373.

It is an arithmetic number, because the mean of its divisors is an integer number (29117652618213).

Almost surely, 2^{110000021002121} is an apocalyptic number.

It is an amenable number.

110000021002121 is a deficient number, since it is larger than the sum of its proper divisors (6470589470731).

110000021002121 is an equidigital number, since it uses as much as digits as its factorization.

110000021002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6470589470730.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 110000021002121 its reverse (121200120000011), we get a palindrome (231200141002132).

The spelling of 110000021002121 in words is "one hundred ten trillion, twenty-one million, two thousand, one hundred twenty-one".