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110212001021 = 227485515423
BaseRepresentation
bin110011010100100100…
…1011010110011111101
3101112110212022202002202
41212221021122303331
53301203233013041
6122344121401245
710651104360143
oct1465111326375
9345425282082
10110212001021
114281688a671
1219439939225
13a5153c67b5
14549740b593
152d00a22a9b
hex19a925acfd

110212001021 has 4 divisors (see below), whose sum is σ = 110697516672. Its totient is φ = 109726485372.

The previous prime is 110212000963. The next prime is 110212001063. The reversal of 110212001021 is 120100212011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120100212011 = 139238477847.

It is a cyclic number.

It is not a de Polignac number, because 110212001021 - 26 = 110212000957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110212000993 and 110212001011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110212051021) 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, 242757485 + ... + 242757938.

It is an arithmetic number, because the mean of its divisors is an integer number (27674379168).

Almost surely, 2110212001021 is an apocalyptic number.

It is an amenable number.

110212001021 is a deficient number, since it is larger than the sum of its proper divisors (485515651).

110212001021 is an equidigital number, since it uses as much as digits as its factorization.

110212001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485515650.

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

Adding to 110212001021 its reverse (120100212011), we get a palindrome (230312213032).

The spelling of 110212001021 in words is "one hundred ten billion, two hundred twelve million, one thousand, twenty-one".

Divisors: 1 227 485515423 110212001021