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1222010210101 = 53121718945601
BaseRepresentation
bin10001110010000101011…
…111000000011100110101
311022211012222210122002011
4101302011133000130311
5130010134103210401
62333214515444221
7154200360254542
oct21620537003465
94284188718064
101222010210101
114312849a677a
12178a008b6671
138b3095a3075
14432077a5bc9
1521bc2184451
hex11c857c0735

1222010210101 has 8 divisors (see below), whose sum is σ = 1246090134744. Its totient is φ = 1197968179200.

The previous prime is 1222010210063. The next prime is 1222010210117. The reversal of 1222010210101 is 1010120102221.

It can be written as a sum of positive squares in 4 ways, for example, as 614742243025 + 607267967076 = 784055^2 + 779274^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1222010210101 - 217 = 1222010079029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222010210191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9408300 + ... + 9537301.

It is an arithmetic number, because the mean of its divisors is an integer number (155761266843).

Almost surely, 21222010210101 is an apocalyptic number.

It is an amenable number.

1222010210101 is a deficient number, since it is larger than the sum of its proper divisors (24079924643).

1222010210101 is a wasteful number, since it uses less digits than its factorization.

1222010210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18946871.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1222010210101 its reverse (1010120102221), we get a palindrome (2232130312322).

The spelling of 1222010210101 in words is "one trillion, two hundred twenty-two billion, ten million, two hundred ten thousand, one hundred one".

Divisors: 1 53 1217 64501 18945601 1004116853 23056796417 1222010210101