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1220011022210 = 25122001102221
BaseRepresentation
bin10001110000001110010…
…100101101011110000010
311022122001122222100212012
4101300032110231132002
5124442040310202320
62332244302132522
7154100003404451
oct21601624553602
94278048870765
101220011022210
11430449464282
12178543281142
138b07b351556
144309807cb98
1521b068d24c5
hex11c0e52d782

1220011022210 has 8 divisors (see below), whose sum is σ = 2196019839996. Its totient is φ = 488004408880.

The previous prime is 1220011022203. The next prime is 1220011022231. The reversal of 1220011022210 is 122201100221.

It can be written as a sum of positive squares in 2 ways, for example, as 1178742318601 + 41268703609 = 1085699^2 + 203147^2 .

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

It is a super-2 number, since 2×12200110222102 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61000551101 + ... + 61000551120.

Almost surely, 21220011022210 is an apocalyptic number.

1220011022210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220011022210 is a deficient number, since it is larger than the sum of its proper divisors (976008817786).

1220011022210 is a wasteful number, since it uses less digits than its factorization.

1220011022210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122001102228.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1220011022210 its reverse (122201100221), we get a palindrome (1342212122431).

The spelling of 1220011022210 in words is "one trillion, two hundred twenty billion, eleven million, twenty-two thousand, two hundred ten".

Divisors: 1 2 5 10 122001102221 244002204442 610005511105 1220011022210