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1222130121323 = 7982315310501
BaseRepresentation
bin10001110010001100101…
…000011011101001101011
311022211112100102202100112
4101302030220123221223
5130010410302340243
62333234441524535
7154203344426126
oct21621450335153
94284470382315
101222130121323
11431336657861
12178a34aa374b
138b328398757
144321969b3bd
1521bcc96d818
hex11c8ca1ba6b

1222130121323 has 4 divisors (see below), whose sum is σ = 1222145511648. Its totient is φ = 1222114731000.

The previous prime is 1222130121307. The next prime is 1222130121349. The reversal of 1222130121323 is 3231210312221.

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

It is a cyclic number.

It is not a de Polignac number, because 1222130121323 - 24 = 1222130121307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222130121383) 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, 7575428 + ... + 7735073.

It is an arithmetic number, because the mean of its divisors is an integer number (305536377912).

Almost surely, 21222130121323 is an apocalyptic number.

1222130121323 is a deficient number, since it is larger than the sum of its proper divisors (15390325).

1222130121323 is an equidigital number, since it uses as much as digits as its factorization.

1222130121323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15390324.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1222130121323 its reverse (3231210312221), we get a palindrome (4453340433544).

The spelling of 1222130121323 in words is "one trillion, two hundred twenty-two billion, one hundred thirty million, one hundred twenty-one thousand, three hundred twenty-three".

Divisors: 1 79823 15310501 1222130121323