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1212120101022 = 23792557215403
BaseRepresentation
bin10001101000110111111…
…111001111000010011110
311021212200201211000221220
4101220313333033002132
5124324410221213042
62324501300234210
7153400315601355
oct21506777170236
94255621730856
101212120101022
1142806a219406
12176b0069b966
138a3c15b040c
144294a08a99c
15217e3c818ec
hex11a37fcf09e

1212120101022 has 16 divisors (see below), whose sum is σ = 2454926787840. Its totient is φ = 398925602712.

The previous prime is 1212120100967. The next prime is 1212120101033. The reversal of 1212120101022 is 2201010212121.

It is a junction number, because it is equal to n+sod(n) for n = 1212120100992 and 1212120101010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1278607228 + ... + 1278608175.

It is an arithmetic number, because the mean of its divisors is an integer number (153432924240).

Almost surely, 21212120101022 is an apocalyptic number.

1212120101022 is an abundant number, since it is smaller than the sum of its proper divisors (1242806686818).

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

1212120101022 is a wasteful number, since it uses less digits than its factorization.

1212120101022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557215487.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1212120101022 its reverse (2201010212121), we get a palindrome (3413130313143).

The spelling of 1212120101022 in words is "one trillion, two hundred twelve billion, one hundred twenty million, one hundred one thousand, twenty-two".

Divisors: 1 2 3 6 79 158 237 474 2557215403 5114430806 7671646209 15343292418 202020016837 404040033674 606060050511 1212120101022