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1222010212210 = 25122201021221
BaseRepresentation
bin10001110010000101011…
…111000000111101110010
311022211012222210201222021
4101302011133000331302
5130010134103242320
62333214515502054
7154200360263644
oct21620537007562
94284188721867
101222010212210
114312849a8317
12178a008b792a
138b3095a4008
14432077a6894
1521bc2184daa
hex11c857c0f72

1222010212210 has 8 divisors (see below), whose sum is σ = 2199618381996. Its totient is φ = 488804084880.

The previous prime is 1222010212187. The next prime is 1222010212219. The reversal of 1222010212210 is 122120102221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1077936068169 + 144074144041 = 1038237^2 + 379571^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1222010212219) 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, 61100510601 + ... + 61100510620.

Almost surely, 21222010212210 is an apocalyptic number.

1222010212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222010212210 is a deficient number, since it is larger than the sum of its proper divisors (977608169786).

1222010212210 is a wasteful number, since it uses less digits than its factorization.

1222010212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122201021228.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1222010212210 its reverse (122120102221), we get a palindrome (1344130314431).

The spelling of 1222010212210 in words is "one trillion, two hundred twenty-two billion, ten million, two hundred twelve thousand, two hundred ten".

Divisors: 1 2 5 10 122201021221 244402042442 611005106105 1222010212210