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12222221002010 = 251997190985411
BaseRepresentation
bin1011000111011011010100…
…1001000010010100011010
31121021102200121002122112022
42301312311021002110122
53100222102034031020
641554451045214442
72401012013243645
oct261666511022432
947242617078468
1012222221002010
113992462139778
1214548b9101422
136a872058c556
143037b6d2ca5c
15162ddc0ca625
hexb1db524251a

12222221002010 has 32 divisors (see below), whose sum is σ = 22111116912000. Its totient is φ = 4864196525760.

The previous prime is 12222221001989. The next prime is 12222221002021. The reversal of 12222221002010 is 1020012222221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12222221002010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143056205 + ... + 143141615.

It is an arithmetic number, because the mean of its divisors is an integer number (690972403500).

Almost surely, 212222221002010 is an apocalyptic number.

12222221002010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12222221002010 is a deficient number, since it is larger than the sum of its proper divisors (9888895909990).

12222221002010 is a wasteful number, since it uses less digits than its factorization.

12222221002010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157526.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12222221002010 its reverse (1020012222221), we get a palindrome (13242233224231).

The spelling of 12222221002010 in words is "twelve trillion, two hundred twenty-two billion, two hundred twenty-one million, two thousand, ten".

Divisors: 1 2 5 10 199 398 995 1990 71909 85411 143818 170822 359545 427055 719090 854110 14309891 16996789 28619782 33993578 71549455 84983945 143098910 169967890 6141819599 12283639198 30709097995 61418195990 1222222100201 2444444200402 6111110501005 12222221002010