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123012210211210 = 2512301221021121
BaseRepresentation
bin11011111110000100000011…
…000101111011100110001010
3121010112212000102201022022101
4123332010003011323212022
5112110413001303224320
61113343010151344014
734624224146421535
oct3376040305734612
9533485012638271
10123012210211210
1136217204819331
121196871038200a
135384003812408
142253b73863a1c
15e34c6acdec0a
hex6fe10317b98a

123012210211210 has 8 divisors (see below), whose sum is σ = 221421978380196. Its totient is φ = 49204884084480.

The previous prime is 123012210211117. The next prime is 123012210211217. The reversal of 123012210211210 is 12112012210321.

123012210211210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 122536464805161 + 475745406049 = 11069619^2 + 689743^2 .

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

It is a super-2 number, since 2×1230122102112102 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123012210211217) 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, 6150610510551 + ... + 6150610510570.

Almost surely, 2123012210211210 is an apocalyptic number.

123012210211210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123012210211210 is a deficient number, since it is larger than the sum of its proper divisors (98409768168986).

123012210211210 is a wasteful number, since it uses less digits than its factorization.

123012210211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12301221021128.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 123012210211210 its reverse (12112012210321), we get a palindrome (135124222421531).

The spelling of 123012210211210 in words is "one hundred twenty-three trillion, twelve billion, two hundred ten million, two hundred eleven thousand, two hundred ten".

Divisors: 1 2 5 10 12301221021121 24602442042242 61506105105605 123012210211210