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202222200102121 = 619506173487333
BaseRepresentation
bin101101111110101110000110…
…011001110001110011101001
3222112000020211211011122000101
4231332232012121301303221
5203001202031211231441
61554031332441505401
760411033430446433
oct5576560631616351
9875006754148011
10202222200102121
1159485a54043671
121a8200257a2261
1388ab619286004
1437d186cb43653
15185a3e4499231
hexb7eb86671ce9

202222200102121 has 8 divisors (see below), whose sum is σ = 205537593289544. Its totient is φ = 198906815790720.

The previous prime is 202222200102113. The next prime is 202222200102173. The reversal of 202222200102121 is 121201002222202.

It can be written as a sum of positive squares in 4 ways, for example, as 2796654182400 + 199425545919721 = 1672320^2 + 14121811^2 .

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 202222200102121 - 23 = 202222200102113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202222200100121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56243971 + ... + 59731303.

It is an arithmetic number, because the mean of its divisors is an integer number (25692199161193).

Almost surely, 2202222200102121 is an apocalyptic number.

It is an amenable number.

202222200102121 is a deficient number, since it is larger than the sum of its proper divisors (3315393187423).

202222200102121 is an equidigital number, since it uses as much as digits as its factorization.

202222200102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4438011.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 202222200102121 its reverse (121201002222202), we get a palindrome (323423202324323).

The spelling of 202222200102121 in words is "two hundred two trillion, two hundred twenty-two billion, two hundred million, one hundred two thousand, one hundred twenty-one".

Divisors: 1 61 950617 3487333 57987637 212727313 3315118034461 202222200102121